Initial commit

101 files changed, 9078 insertions, 0 deletions

diff --git a/vendor/symfony/config/Symfony/Component/Config/.gitignore b/vendor/symfony/config/Symfony/Component/Config/.gitignore
new file mode 100644
index 0000000..c49a5d8
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/.gitignore
@@ -0,0 +1,3 @@
+vendor/
+composer.lock
+phpunit.xml
diff --git a/vendor/symfony/config/Symfony/Component/Config/CHANGELOG.md b/vendor/symfony/config/Symfony/Component/Config/CHANGELOG.md
new file mode 100644
index 0000000..59b30a3
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/CHANGELOG.md
@@ -0,0 +1,21 @@
+CHANGELOG
+=========
+
+2.2.0
+-----
+
+ * added ArrayNodeDefinition::canBeEnabled() and ArrayNodeDefinition::canBeDisabled()
+   to ease configuration when some sections are respectively disabled / enabled
+   by default.
+ * added a `normalizeKeys()` method for array nodes (to avoid key normalization)
+ * added numerical type handling for config definitions
+ * added convenience methods for optional configuration sections to ArrayNodeDefinition
+ * added a utils class for XML manipulations
+
+2.1.0
+-----
+
+ * added a way to add documentation on configuration
+ * implemented `Serializable` on resources
+ * LoaderResolverInterface is now used instead of LoaderResolver for type
+   hinting
diff --git a/vendor/symfony/config/Symfony/Component/Config/ConfigCache.php b/vendor/symfony/config/Symfony/Component/Config/ConfigCache.php
new file mode 100644
index 0000000..ebf107f
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/ConfigCache.php
@@ -0,0 +1,126 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+use Symfony\Component\Config\Resource\ResourceInterface;
+use Symfony\Component\Filesystem\Exception\IOException;
+use Symfony\Component\Filesystem\Filesystem;
+
+/**
+ * ConfigCache manages PHP cache files.
+ *
+ * When debug is enabled, it knows when to flush the cache
+ * thanks to an array of ResourceInterface instances.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class ConfigCache
+{
+    private $debug;
+    private $file;
+
+    /**
+     * Constructor.
+     *
+     * @param string $file  The absolute cache path
+     * @param bool   $debug Whether debugging is enabled or not
+     */
+    public function __construct($file, $debug)
+    {
+        $this->file = $file;
+        $this->debug = (bool) $debug;
+    }
+
+    /**
+     * Gets the cache file path.
+     *
+     * @return string The cache file path
+     */
+    public function __toString()
+    {
+        return $this->file;
+    }
+
+    /**
+     * Checks if the cache is still fresh.
+     *
+     * This method always returns true when debug is off and the
+     * cache file exists.
+     *
+     * @return bool true if the cache is fresh, false otherwise
+     */
+    public function isFresh()
+    {
+        if (!is_file($this->file)) {
+            return false;
+        }
+
+        if (!$this->debug) {
+            return true;
+        }
+
+        $metadata = $this->getMetaFile();
+        if (!is_file($metadata)) {
+            return false;
+        }
+
+        $time = filemtime($this->file);
+        $meta = unserialize(file_get_contents($metadata));
+        foreach ($meta as $resource) {
+            if (!$resource->isFresh($time)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Writes cache.
+     *
+     * @param string              $content  The content to write in the cache
+     * @param ResourceInterface[] $metadata An array of ResourceInterface instances
+     *
+     * @throws \RuntimeException When cache file can't be written
+     */
+    public function write($content, array $metadata = null)
+    {
+        $mode = 0666;
+        $umask = umask();
+        $filesystem = new Filesystem();
+        $filesystem->dumpFile($this->file, $content, null);
+        try {
+            $filesystem->chmod($this->file, $mode, $umask);
+        } catch (IOException $e) {
+            // discard chmod failure (some filesystem may not support it)
+        }
+
+        if (null !== $metadata && true === $this->debug) {
+            $filesystem->dumpFile($this->getMetaFile(), serialize($metadata), null);
+            try {
+                $filesystem->chmod($this->getMetaFile(), $mode, $umask);
+            } catch (IOException $e) {
+                // discard chmod failure (some filesystem may not support it)
+            }
+        }
+    }
+
+    /**
+     * Gets the meta file path.
+     *
+     * @return string The meta file path
+     */
+    private function getMetaFile()
+    {
+        return $this->file.'.meta';
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/ArrayNode.php b/vendor/symfony/config/Symfony/Component/Config/Definition/ArrayNode.php
new file mode 100644
index 0000000..5deb472
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/ArrayNode.php
@@ -0,0 +1,393 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+use Symfony\Component\Config\Definition\Exception\UnsetKeyException;
+
+/**
+ * Represents an Array node in the config tree.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ArrayNode extends BaseNode implements PrototypeNodeInterface
+{
+    protected $xmlRemappings = array();
+    protected $children = array();
+    protected $allowFalse = false;
+    protected $allowNewKeys = true;
+    protected $addIfNotSet = false;
+    protected $performDeepMerging = true;
+    protected $ignoreExtraKeys = false;
+    protected $normalizeKeys = true;
+
+    public function setNormalizeKeys($normalizeKeys)
+    {
+        $this->normalizeKeys = (bool) $normalizeKeys;
+    }
+
+    /**
+     * Normalizes keys between the different configuration formats.
+     *
+     * Namely, you mostly have foo_bar in YAML while you have foo-bar in XML.
+     * After running this method, all keys are normalized to foo_bar.
+     *
+     * If you have a mixed key like foo-bar_moo, it will not be altered.
+     * The key will also not be altered if the target key already exists.
+     *
+     * @param mixed $value
+     *
+     * @return array The value with normalized keys
+     */
+    protected function preNormalize($value)
+    {
+        if (!$this->normalizeKeys || !is_array($value)) {
+            return $value;
+        }
+
+        foreach ($value as $k => $v) {
+            if (false !== strpos($k, '-') && false === strpos($k, '_') && !array_key_exists($normalizedKey = str_replace('-', '_', $k), $value)) {
+                $value[$normalizedKey] = $v;
+                unset($value[$k]);
+            }
+        }
+
+        return $value;
+    }
+
+    /**
+     * Retrieves the children of this node.
+     *
+     * @return array The children
+     */
+    public function getChildren()
+    {
+        return $this->children;
+    }
+
+    /**
+     * Sets the xml remappings that should be performed.
+     *
+     * @param array $remappings an array of the form array(array(string, string))
+     */
+    public function setXmlRemappings(array $remappings)
+    {
+        $this->xmlRemappings = $remappings;
+    }
+
+    /**
+     * Gets the xml remappings that should be performed.
+     *
+     * @return array $remappings an array of the form array(array(string, string))
+     */
+    public function getXmlRemappings()
+    {
+        return $this->xmlRemappings;
+    }
+
+    /**
+     * Sets whether to add default values for this array if it has not been
+     * defined in any of the configuration files.
+     *
+     * @param bool $boolean
+     */
+    public function setAddIfNotSet($boolean)
+    {
+        $this->addIfNotSet = (bool) $boolean;
+    }
+
+    /**
+     * Sets whether false is allowed as value indicating that the array should be unset.
+     *
+     * @param bool $allow
+     */
+    public function setAllowFalse($allow)
+    {
+        $this->allowFalse = (bool) $allow;
+    }
+
+    /**
+     * Sets whether new keys can be defined in subsequent configurations.
+     *
+     * @param bool $allow
+     */
+    public function setAllowNewKeys($allow)
+    {
+        $this->allowNewKeys = (bool) $allow;
+    }
+
+    /**
+     * Sets if deep merging should occur.
+     *
+     * @param bool $boolean
+     */
+    public function setPerformDeepMerging($boolean)
+    {
+        $this->performDeepMerging = (bool) $boolean;
+    }
+
+    /**
+     * Whether extra keys should just be ignore without an exception.
+     *
+     * @param bool $boolean To allow extra keys
+     */
+    public function setIgnoreExtraKeys($boolean)
+    {
+        $this->ignoreExtraKeys = (bool) $boolean;
+    }
+
+    /**
+     * Sets the node Name.
+     *
+     * @param string $name The node's name
+     */
+    public function setName($name)
+    {
+        $this->name = $name;
+    }
+
+    /**
+     * Checks if the node has a default value.
+     *
+     * @return bool
+     */
+    public function hasDefaultValue()
+    {
+        return $this->addIfNotSet;
+    }
+
+    /**
+     * Retrieves the default value.
+     *
+     * @return array The default value
+     *
+     * @throws \RuntimeException if the node has no default value
+     */
+    public function getDefaultValue()
+    {
+        if (!$this->hasDefaultValue()) {
+            throw new \RuntimeException(sprintf('The node at path "%s" has no default value.', $this->getPath()));
+        }
+
+        $defaults = array();
+        foreach ($this->children as $name => $child) {
+            if ($child->hasDefaultValue()) {
+                $defaults[$name] = $child->getDefaultValue();
+            }
+        }
+
+        return $defaults;
+    }
+
+    /**
+     * Adds a child node.
+     *
+     * @param NodeInterface $node The child node to add
+     *
+     * @throws \InvalidArgumentException when the child node has no name
+     * @throws \InvalidArgumentException when the child node's name is not unique
+     */
+    public function addChild(NodeInterface $node)
+    {
+        $name = $node->getName();
+        if (!strlen($name)) {
+            throw new \InvalidArgumentException('Child nodes must be named.');
+        }
+        if (isset($this->children[$name])) {
+            throw new \InvalidArgumentException(sprintf('A child node named "%s" already exists.', $name));
+        }
+
+        $this->children[$name] = $node;
+    }
+
+    /**
+     * Finalizes the value of this node.
+     *
+     * @param mixed $value
+     *
+     * @return mixed The finalised value
+     *
+     * @throws UnsetKeyException
+     * @throws InvalidConfigurationException if the node doesn't have enough children
+     */
+    protected function finalizeValue($value)
+    {
+        if (false === $value) {
+            $msg = sprintf('Unsetting key for path "%s", value: %s', $this->getPath(), json_encode($value));
+            throw new UnsetKeyException($msg);
+        }
+
+        foreach ($this->children as $name => $child) {
+            if (!array_key_exists($name, $value)) {
+                if ($child->isRequired()) {
+                    $msg = sprintf('The child node "%s" at path "%s" must be configured.', $name, $this->getPath());
+                    $ex = new InvalidConfigurationException($msg);
+                    $ex->setPath($this->getPath());
+
+                    throw $ex;
+                }
+
+                if ($child->hasDefaultValue()) {
+                    $value[$name] = $child->getDefaultValue();
+                }
+
+                continue;
+            }
+
+            try {
+                $value[$name] = $child->finalize($value[$name]);
+            } catch (UnsetKeyException $unset) {
+                unset($value[$name]);
+            }
+        }
+
+        return $value;
+    }
+
+    /**
+     * Validates the type of the value.
+     *
+     * @param mixed $value
+     *
+     * @throws InvalidTypeException
+     */
+    protected function validateType($value)
+    {
+        if (!is_array($value) && (!$this->allowFalse || false !== $value)) {
+            $ex = new InvalidTypeException(sprintf(
+                'Invalid type for path "%s". Expected array, but got %s',
+                $this->getPath(),
+                gettype($value)
+            ));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+    }
+
+    /**
+     * Normalizes the value.
+     *
+     * @param mixed $value The value to normalize
+     *
+     * @return mixed The normalized value
+     *
+     * @throws InvalidConfigurationException
+     */
+    protected function normalizeValue($value)
+    {
+        if (false === $value) {
+            return $value;
+        }
+
+        $value = $this->remapXml($value);
+
+        $normalized = array();
+        foreach ($value as $name => $val) {
+            if (isset($this->children[$name])) {
+                $normalized[$name] = $this->children[$name]->normalize($val);
+                unset($value[$name]);
+            }
+        }
+
+        // if extra fields are present, throw exception
+        if (count($value) && !$this->ignoreExtraKeys) {
+            $msg = sprintf('Unrecognized option%s "%s" under "%s"', 1 === count($value) ? '' : 's', implode(', ', array_keys($value)), $this->getPath());
+            $ex = new InvalidConfigurationException($msg);
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+
+        return $normalized;
+    }
+
+    /**
+     * Remaps multiple singular values to a single plural value.
+     *
+     * @param array $value The source values
+     *
+     * @return array The remapped values
+     */
+    protected function remapXml($value)
+    {
+        foreach ($this->xmlRemappings as $transformation) {
+            list($singular, $plural) = $transformation;
+
+            if (!isset($value[$singular])) {
+                continue;
+            }
+
+            $value[$plural] = Processor::normalizeConfig($value, $singular, $plural);
+            unset($value[$singular]);
+        }
+
+        return $value;
+    }
+
+    /**
+     * Merges values together.
+     *
+     * @param mixed $leftSide  The left side to merge.
+     * @param mixed $rightSide The right side to merge.
+     *
+     * @return mixed The merged values
+     *
+     * @throws InvalidConfigurationException
+     * @throws \RuntimeException
+     */
+    protected function mergeValues($leftSide, $rightSide)
+    {
+        if (false === $rightSide) {
+            // if this is still false after the last config has been merged the
+            // finalization pass will take care of removing this key entirely
+            return false;
+        }
+
+        if (false === $leftSide || !$this->performDeepMerging) {
+            return $rightSide;
+        }
+
+        foreach ($rightSide as $k => $v) {
+            // no conflict
+            if (!array_key_exists($k, $leftSide)) {
+                if (!$this->allowNewKeys) {
+                    $ex = new InvalidConfigurationException(sprintf(
+                        'You are not allowed to define new elements for path "%s". '
+                       .'Please define all elements for this path in one config file. '
+                       .'If you are trying to overwrite an element, make sure you redefine it '
+                       .'with the same name.',
+                        $this->getPath()
+                    ));
+                    $ex->setPath($this->getPath());
+
+                    throw $ex;
+                }
+
+                $leftSide[$k] = $v;
+                continue;
+            }
+
+            if (!isset($this->children[$k])) {
+                throw new \RuntimeException('merge() expects a normalized config array.');
+            }
+
+            $leftSide[$k] = $this->children[$k]->merge($leftSide[$k], $v);
+        }
+
+        return $leftSide;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/BaseNode.php b/vendor/symfony/config/Symfony/Component/Config/Definition/BaseNode.php
new file mode 100644
index 0000000..afccc1c
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/BaseNode.php
@@ -0,0 +1,360 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\Exception;
+use Symfony\Component\Config\Definition\Exception\ForbiddenOverwriteException;
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+
+/**
+ * The base node class.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+abstract class BaseNode implements NodeInterface
+{
+    protected $name;
+    protected $parent;
+    protected $normalizationClosures = array();
+    protected $finalValidationClosures = array();
+    protected $allowOverwrite = true;
+    protected $required = false;
+    protected $equivalentValues = array();
+    protected $attributes = array();
+
+    /**
+     * Constructor.
+     *
+     * @param string        $name   The name of the node
+     * @param NodeInterface $parent The parent of this node
+     *
+     * @throws \InvalidArgumentException if the name contains a period.
+     */
+    public function __construct($name, NodeInterface $parent = null)
+    {
+        if (false !== strpos($name, '.')) {
+            throw new \InvalidArgumentException('The name must not contain ".".');
+        }
+
+        $this->name = $name;
+        $this->parent = $parent;
+    }
+
+    public function setAttribute($key, $value)
+    {
+        $this->attributes[$key] = $value;
+    }
+
+    public function getAttribute($key, $default = null)
+    {
+        return isset($this->attributes[$key]) ? $this->attributes[$key] : $default;
+    }
+
+    public function hasAttribute($key)
+    {
+        return isset($this->attributes[$key]);
+    }
+
+    public function getAttributes()
+    {
+        return $this->attributes;
+    }
+
+    public function setAttributes(array $attributes)
+    {
+        $this->attributes = $attributes;
+    }
+
+    public function removeAttribute($key)
+    {
+        unset($this->attributes[$key]);
+    }
+
+    /**
+     * Sets an info message.
+     *
+     * @param string $info
+     */
+    public function setInfo($info)
+    {
+        $this->setAttribute('info', $info);
+    }
+
+    /**
+     * Returns info message.
+     *
+     * @return string The info text
+     */
+    public function getInfo()
+    {
+        return $this->getAttribute('info');
+    }
+
+    /**
+     * Sets the example configuration for this node.
+     *
+     * @param string|array $example
+     */
+    public function setExample($example)
+    {
+        $this->setAttribute('example', $example);
+    }
+
+    /**
+     * Retrieves the example configuration for this node.
+     *
+     * @return string|array The example
+     */
+    public function getExample()
+    {
+        return $this->getAttribute('example');
+    }
+
+    /**
+     * Adds an equivalent value.
+     *
+     * @param mixed $originalValue
+     * @param mixed $equivalentValue
+     */
+    public function addEquivalentValue($originalValue, $equivalentValue)
+    {
+        $this->equivalentValues[] = array($originalValue, $equivalentValue);
+    }
+
+    /**
+     * Set this node as required.
+     *
+     * @param bool $boolean Required node
+     */
+    public function setRequired($boolean)
+    {
+        $this->required = (bool) $boolean;
+    }
+
+    /**
+     * Sets if this node can be overridden.
+     *
+     * @param bool $allow
+     */
+    public function setAllowOverwrite($allow)
+    {
+        $this->allowOverwrite = (bool) $allow;
+    }
+
+    /**
+     * Sets the closures used for normalization.
+     *
+     * @param \Closure[] $closures An array of Closures used for normalization
+     */
+    public function setNormalizationClosures(array $closures)
+    {
+        $this->normalizationClosures = $closures;
+    }
+
+    /**
+     * Sets the closures used for final validation.
+     *
+     * @param \Closure[] $closures An array of Closures used for final validation
+     */
+    public function setFinalValidationClosures(array $closures)
+    {
+        $this->finalValidationClosures = $closures;
+    }
+
+    /**
+     * Checks if this node is required.
+     *
+     * @return bool
+     */
+    public function isRequired()
+    {
+        return $this->required;
+    }
+
+    /**
+     * Returns the name of this node.
+     *
+     * @return string The Node's name.
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Retrieves the path of this node.
+     *
+     * @return string The Node's path
+     */
+    public function getPath()
+    {
+        $path = $this->name;
+
+        if (null !== $this->parent) {
+            $path = $this->parent->getPath().'.'.$path;
+        }
+
+        return $path;
+    }
+
+    /**
+     * Merges two values together.
+     *
+     * @param mixed $leftSide
+     * @param mixed $rightSide
+     *
+     * @return mixed The merged value
+     *
+     * @throws ForbiddenOverwriteException
+     */
+    final public function merge($leftSide, $rightSide)
+    {
+        if (!$this->allowOverwrite) {
+            throw new ForbiddenOverwriteException(sprintf(
+                'Configuration path "%s" cannot be overwritten. You have to '
+               .'define all options for this path, and any of its sub-paths in '
+               .'one configuration section.',
+                $this->getPath()
+            ));
+        }
+
+        $this->validateType($leftSide);
+        $this->validateType($rightSide);
+
+        return $this->mergeValues($leftSide, $rightSide);
+    }
+
+    /**
+     * Normalizes a value, applying all normalization closures.
+     *
+     * @param mixed $value Value to normalize.
+     *
+     * @return mixed The normalized value.
+     */
+    final public function normalize($value)
+    {
+        $value = $this->preNormalize($value);
+
+        // run custom normalization closures
+        foreach ($this->normalizationClosures as $closure) {
+            $value = $closure($value);
+        }
+
+        // replace value with their equivalent
+        foreach ($this->equivalentValues as $data) {
+            if ($data[0] === $value) {
+                $value = $data[1];
+            }
+        }
+
+        // validate type
+        $this->validateType($value);
+
+        // normalize value
+        return $this->normalizeValue($value);
+    }
+
+    /**
+     * Normalizes the value before any other normalization is applied.
+     *
+     * @param $value
+     *
+     * @return $value The normalized array value
+     */
+    protected function preNormalize($value)
+    {
+        return $value;
+    }
+
+    /**
+     * Returns parent node for this node.
+     *
+     * @return NodeInterface|null
+     */
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Finalizes a value, applying all finalization closures.
+     *
+     * @param mixed $value The value to finalize
+     *
+     * @return mixed The finalized value
+     *
+     * @throws Exception
+     * @throws InvalidConfigurationException
+     */
+    final public function finalize($value)
+    {
+        $this->validateType($value);
+
+        $value = $this->finalizeValue($value);
+
+        // Perform validation on the final value if a closure has been set.
+        // The closure is also allowed to return another value.
+        foreach ($this->finalValidationClosures as $closure) {
+            try {
+                $value = $closure($value);
+            } catch (Exception $correctEx) {
+                throw $correctEx;
+            } catch (\Exception $invalid) {
+                throw new InvalidConfigurationException(sprintf(
+                    'Invalid configuration for path "%s": %s',
+                    $this->getPath(),
+                    $invalid->getMessage()
+                ), $invalid->getCode(), $invalid);
+            }
+        }
+
+        return $value;
+    }
+
+    /**
+     * Validates the type of a Node.
+     *
+     * @param mixed $value The value to validate
+     *
+     * @throws InvalidTypeException when the value is invalid
+     */
+    abstract protected function validateType($value);
+
+    /**
+     * Normalizes the value.
+     *
+     * @param mixed $value The value to normalize.
+     *
+     * @return mixed The normalized value
+     */
+    abstract protected function normalizeValue($value);
+
+    /**
+     * Merges two values together.
+     *
+     * @param mixed $leftSide
+     * @param mixed $rightSide
+     *
+     * @return mixed The merged value
+     */
+    abstract protected function mergeValues($leftSide, $rightSide);
+
+    /**
+     * Finalizes a value.
+     *
+     * @param mixed $value The value to finalize
+     *
+     * @return mixed The finalized value
+     */
+    abstract protected function finalizeValue($value);
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/BooleanNode.php b/vendor/symfony/config/Symfony/Component/Config/Definition/BooleanNode.php
new file mode 100644
index 0000000..df06b30
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/BooleanNode.php
@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+
+/**
+ * This node represents a Boolean value in the config tree.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class BooleanNode extends ScalarNode
+{
+    /**
+     * {@inheritdoc}
+     */
+    protected function validateType($value)
+    {
+        if (!is_bool($value)) {
+            $ex = new InvalidTypeException(sprintf(
+                'Invalid type for path "%s". Expected boolean, but got %s.',
+                $this->getPath(),
+                gettype($value)
+            ));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ArrayNodeDefinition.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ArrayNodeDefinition.php
new file mode 100644
index 0000000..c64b2ec
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ArrayNodeDefinition.php
@@ -0,0 +1,489 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\ArrayNode;
+use Symfony\Component\Config\Definition\PrototypedArrayNode;
+use Symfony\Component\Config\Definition\Exception\InvalidDefinitionException;
+
+/**
+ * This class provides a fluent interface for defining an array node.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ArrayNodeDefinition extends NodeDefinition implements ParentNodeDefinitionInterface
+{
+    protected $performDeepMerging = true;
+    protected $ignoreExtraKeys = false;
+    protected $children = array();
+    protected $prototype;
+    protected $atLeastOne = false;
+    protected $allowNewKeys = true;
+    protected $key;
+    protected $removeKeyItem;
+    protected $addDefaults = false;
+    protected $addDefaultChildren = false;
+    protected $nodeBuilder;
+    protected $normalizeKeys = true;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __construct($name, NodeParentInterface $parent = null)
+    {
+        parent::__construct($name, $parent);
+
+        $this->nullEquivalent = array();
+        $this->trueEquivalent = array();
+    }
+
+    /**
+     * Sets a custom children builder.
+     *
+     * @param NodeBuilder $builder A custom NodeBuilder
+     */
+    public function setBuilder(NodeBuilder $builder)
+    {
+        $this->nodeBuilder = $builder;
+    }
+
+    /**
+     * Returns a builder to add children nodes.
+     *
+     * @return NodeBuilder
+     */
+    public function children()
+    {
+        return $this->getNodeBuilder();
+    }
+
+    /**
+     * Sets a prototype for child nodes.
+     *
+     * @param string $type the type of node
+     *
+     * @return NodeDefinition
+     */
+    public function prototype($type)
+    {
+        return $this->prototype = $this->getNodeBuilder()->node(null, $type)->setParent($this);
+    }
+
+    /**
+     * Adds the default value if the node is not set in the configuration.
+     *
+     * This method is applicable to concrete nodes only (not to prototype nodes).
+     * If this function has been called and the node is not set during the finalization
+     * phase, it's default value will be derived from its children default values.
+     *
+     * @return ArrayNodeDefinition
+     */
+    public function addDefaultsIfNotSet()
+    {
+        $this->addDefaults = true;
+
+        return $this;
+    }
+
+    /**
+     * Adds children with a default value when none are defined.
+     *
+     * @param int|string|array|null $children The number of children|The child name|The children names to be added
+     *
+     * This method is applicable to prototype nodes only.
+     *
+     * @return ArrayNodeDefinition
+     */
+    public function addDefaultChildrenIfNoneSet($children = null)
+    {
+        $this->addDefaultChildren = $children;
+
+        return $this;
+    }
+
+    /**
+     * Requires the node to have at least one element.
+     *
+     * This method is applicable to prototype nodes only.
+     *
+     * @return ArrayNodeDefinition
+     */
+    public function requiresAtLeastOneElement()
+    {
+        $this->atLeastOne = true;
+
+        return $this;
+    }
+
+    /**
+     * Disallows adding news keys in a subsequent configuration.
+     *
+     * If used all keys have to be defined in the same configuration file.
+     *
+     * @return ArrayNodeDefinition
+     */
+    public function disallowNewKeysInSubsequentConfigs()
+    {
+        $this->allowNewKeys = false;
+
+        return $this;
+    }
+
+    /**
+     * Sets a normalization rule for XML configurations.
+     *
+     * @param string $singular The key to remap
+     * @param string $plural   The plural of the key for irregular plurals
+     *
+     * @return ArrayNodeDefinition
+     */
+    public function fixXmlConfig($singular, $plural = null)
+    {
+        $this->normalization()->remap($singular, $plural);
+
+        return $this;
+    }
+
+    /**
+     * Sets the attribute which value is to be used as key.
+     *
+     * This is useful when you have an indexed array that should be an
+     * associative array. You can select an item from within the array
+     * to be the key of the particular item. For example, if "id" is the
+     * "key", then:
+     *
+     *     array(
+     *         array('id' => 'my_name', 'foo' => 'bar'),
+     *     );
+     *
+     *   becomes
+     *
+     *     array(
+     *         'my_name' => array('foo' => 'bar'),
+     *     );
+     *
+     * If you'd like "'id' => 'my_name'" to still be present in the resulting
+     * array, then you can set the second argument of this method to false.
+     *
+     * This method is applicable to prototype nodes only.
+     *
+     * @param string $name          The name of the key
+     * @param bool   $removeKeyItem Whether or not the key item should be removed.
+     *
+     * @return ArrayNodeDefinition
+     */
+    public function useAttributeAsKey($name, $removeKeyItem = true)
+    {
+        $this->key = $name;
+        $this->removeKeyItem = $removeKeyItem;
+
+        return $this;
+    }
+
+    /**
+     * Sets whether the node can be unset.
+     *
+     * @param bool $allow
+     *
+     * @return ArrayNodeDefinition
+     */
+    public function canBeUnset($allow = true)
+    {
+        $this->merge()->allowUnset($allow);
+
+        return $this;
+    }
+
+    /**
+     * Adds an "enabled" boolean to enable the current section.
+     *
+     * By default, the section is disabled. If any configuration is specified then
+     * the node will be automatically enabled:
+     *
+     * enableableArrayNode: {enabled: true, ...}   # The config is enabled & default values get overridden
+     * enableableArrayNode: ~                      # The config is enabled & use the default values
+     * enableableArrayNode: true                   # The config is enabled & use the default values
+     * enableableArrayNode: {other: value, ...}    # The config is enabled & default values get overridden
+     * enableableArrayNode: {enabled: false, ...}  # The config is disabled
+     * enableableArrayNode: false                  # The config is disabled
+     *
+     * @return ArrayNodeDefinition
+     */
+    public function canBeEnabled()
+    {
+        $this
+            ->addDefaultsIfNotSet()
+            ->treatFalseLike(array('enabled' => false))
+            ->treatTrueLike(array('enabled' => true))
+            ->treatNullLike(array('enabled' => true))
+            ->beforeNormalization()
+                ->ifArray()
+                ->then(function ($v) {
+                    $v['enabled'] = isset($v['enabled']) ? $v['enabled'] : true;
+
+                    return $v;
+                })
+            ->end()
+            ->children()
+                ->booleanNode('enabled')
+                    ->defaultFalse()
+        ;
+
+        return $this;
+    }
+
+    /**
+     * Adds an "enabled" boolean to enable the current section.
+     *
+     * By default, the section is enabled.
+     *
+     * @return ArrayNodeDefinition
+     */
+    public function canBeDisabled()
+    {
+        $this
+            ->addDefaultsIfNotSet()
+            ->treatFalseLike(array('enabled' => false))
+            ->treatTrueLike(array('enabled' => true))
+            ->treatNullLike(array('enabled' => true))
+            ->children()
+                ->booleanNode('enabled')
+                    ->defaultTrue()
+        ;
+
+        return $this;
+    }
+
+    /**
+     * Disables the deep merging of the node.
+     *
+     * @return ArrayNodeDefinition
+     */
+    public function performNoDeepMerging()
+    {
+        $this->performDeepMerging = false;
+
+        return $this;
+    }
+
+    /**
+     * Allows extra config keys to be specified under an array without
+     * throwing an exception.
+     *
+     * Those config values are simply ignored and removed from the
+     * resulting array. This should be used only in special cases where
+     * you want to send an entire configuration array through a special
+     * tree that processes only part of the array.
+     *
+     * @return ArrayNodeDefinition
+     */
+    public function ignoreExtraKeys()
+    {
+        $this->ignoreExtraKeys = true;
+
+        return $this;
+    }
+
+    /**
+     * Sets key normalization.
+     *
+     * @param bool $bool Whether to enable key normalization
+     *
+     * @return ArrayNodeDefinition
+     */
+    public function normalizeKeys($bool)
+    {
+        $this->normalizeKeys = (bool) $bool;
+
+        return $this;
+    }
+
+    /**
+     * Appends a node definition.
+     *
+     *     $node = new ArrayNodeDefinition()
+     *         ->children()
+     *             ->scalarNode('foo')->end()
+     *             ->scalarNode('baz')->end()
+     *         ->end()
+     *         ->append($this->getBarNodeDefinition())
+     *     ;
+     *
+     * @param NodeDefinition $node A NodeDefinition instance
+     *
+     * @return ArrayNodeDefinition This node
+     */
+    public function append(NodeDefinition $node)
+    {
+        $this->children[$node->name] = $node->setParent($this);
+
+        return $this;
+    }
+
+    /**
+     * Returns a node builder to be used to add children and prototype.
+     *
+     * @return NodeBuilder The node builder
+     */
+    protected function getNodeBuilder()
+    {
+        if (null === $this->nodeBuilder) {
+            $this->nodeBuilder = new NodeBuilder();
+        }
+
+        return $this->nodeBuilder->setParent($this);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function createNode()
+    {
+        if (null === $this->prototype) {
+            $node = new ArrayNode($this->name, $this->parent);
+
+            $this->validateConcreteNode($node);
+
+            $node->setAddIfNotSet($this->addDefaults);
+
+            foreach ($this->children as $child) {
+                $child->parent = $node;
+                $node->addChild($child->getNode());
+            }
+        } else {
+            $node = new PrototypedArrayNode($this->name, $this->parent);
+
+            $this->validatePrototypeNode($node);
+
+            if (null !== $this->key) {
+                $node->setKeyAttribute($this->key, $this->removeKeyItem);
+            }
+
+            if (true === $this->atLeastOne) {
+                $node->setMinNumberOfElements(1);
+            }
+
+            if ($this->default) {
+                $node->setDefaultValue($this->defaultValue);
+            }
+
+            if (false !== $this->addDefaultChildren) {
+                $node->setAddChildrenIfNoneSet($this->addDefaultChildren);
+                if ($this->prototype instanceof static && null === $this->prototype->prototype) {
+                    $this->prototype->addDefaultsIfNotSet();
+                }
+            }
+
+            $this->prototype->parent = $node;
+            $node->setPrototype($this->prototype->getNode());
+        }
+
+        $node->setAllowNewKeys($this->allowNewKeys);
+        $node->addEquivalentValue(null, $this->nullEquivalent);
+        $node->addEquivalentValue(true, $this->trueEquivalent);
+        $node->addEquivalentValue(false, $this->falseEquivalent);
+        $node->setPerformDeepMerging($this->performDeepMerging);
+        $node->setRequired($this->required);
+        $node->setIgnoreExtraKeys($this->ignoreExtraKeys);
+        $node->setNormalizeKeys($this->normalizeKeys);
+
+        if (null !== $this->normalization) {
+            $node->setNormalizationClosures($this->normalization->before);
+            $node->setXmlRemappings($this->normalization->remappings);
+        }
+
+        if (null !== $this->merge) {
+            $node->setAllowOverwrite($this->merge->allowOverwrite);
+            $node->setAllowFalse($this->merge->allowFalse);
+        }
+
+        if (null !== $this->validation) {
+            $node->setFinalValidationClosures($this->validation->rules);
+        }
+
+        return $node;
+    }
+
+    /**
+     * Validate the configuration of a concrete node.
+     *
+     * @param ArrayNode $node The related node
+     *
+     * @throws InvalidDefinitionException
+     */
+    protected function validateConcreteNode(ArrayNode $node)
+    {
+        $path = $node->getPath();
+
+        if (null !== $this->key) {
+            throw new InvalidDefinitionException(
+                sprintf('->useAttributeAsKey() is not applicable to concrete nodes at path "%s"', $path)
+            );
+        }
+
+        if (true === $this->atLeastOne) {
+            throw new InvalidDefinitionException(
+                sprintf('->requiresAtLeastOneElement() is not applicable to concrete nodes at path "%s"', $path)
+            );
+        }
+
+        if ($this->default) {
+            throw new InvalidDefinitionException(
+                sprintf('->defaultValue() is not applicable to concrete nodes at path "%s"', $path)
+            );
+        }
+
+        if (false !== $this->addDefaultChildren) {
+            throw new InvalidDefinitionException(
+                sprintf('->addDefaultChildrenIfNoneSet() is not applicable to concrete nodes at path "%s"', $path)
+            );
+        }
+    }
+
+    /**
+     * Validate the configuration of a prototype node.
+     *
+     * @param PrototypedArrayNode $node The related node
+     *
+     * @throws InvalidDefinitionException
+     */
+    protected function validatePrototypeNode(PrototypedArrayNode $node)
+    {
+        $path = $node->getPath();
+
+        if ($this->addDefaults) {
+            throw new InvalidDefinitionException(
+                sprintf('->addDefaultsIfNotSet() is not applicable to prototype nodes at path "%s"', $path)
+            );
+        }
+
+        if (false !== $this->addDefaultChildren) {
+            if ($this->default) {
+                throw new InvalidDefinitionException(
+                    sprintf('A default value and default children might not be used together at path "%s"', $path)
+                );
+            }
+
+            if (null !== $this->key && (null === $this->addDefaultChildren || is_int($this->addDefaultChildren) && $this->addDefaultChildren > 0)) {
+                throw new InvalidDefinitionException(
+                    sprintf('->addDefaultChildrenIfNoneSet() should set default children names as ->useAttributeAsKey() is used at path "%s"', $path)
+                );
+            }
+
+            if (null === $this->key && (is_string($this->addDefaultChildren) || is_array($this->addDefaultChildren))) {
+                throw new InvalidDefinitionException(
+                    sprintf('->addDefaultChildrenIfNoneSet() might not set default children names as ->useAttributeAsKey() is not used at path "%s"', $path)
+                );
+            }
+        }
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/BooleanNodeDefinition.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/BooleanNodeDefinition.php
new file mode 100644
index 0000000..db7ebc2
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/BooleanNodeDefinition.php
@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\BooleanNode;
+
+/**
+ * This class provides a fluent interface for defining a node.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class BooleanNodeDefinition extends ScalarNodeDefinition
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function __construct($name, NodeParentInterface $parent = null)
+    {
+        parent::__construct($name, $parent);
+
+        $this->nullEquivalent = true;
+    }
+
+    /**
+     * Instantiate a Node.
+     *
+     * @return BooleanNode The node
+     */
+    protected function instantiateNode()
+    {
+        return new BooleanNode($this->name, $this->parent);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/EnumNodeDefinition.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/EnumNodeDefinition.php
new file mode 100644
index 0000000..dc25fcb
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/EnumNodeDefinition.php
@@ -0,0 +1,58 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\EnumNode;
+
+/**
+ * Enum Node Definition.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class EnumNodeDefinition extends ScalarNodeDefinition
+{
+    private $values;
+
+    /**
+     * @param array $values
+     *
+     * @return EnumNodeDefinition|$this
+     */
+    public function values(array $values)
+    {
+        $values = array_unique($values);
+
+        if (count($values) <= 1) {
+            throw new \InvalidArgumentException('->values() must be called with at least two distinct values.');
+        }
+
+        $this->values = $values;
+
+        return $this;
+    }
+
+    /**
+     * Instantiate a Node.
+     *
+     * @return EnumNode The node
+     *
+     * @throws \RuntimeException
+     */
+    protected function instantiateNode()
+    {
+        if (null === $this->values) {
+            throw new \RuntimeException('You must call ->values() on enum nodes.');
+        }
+
+        return new EnumNode($this->name, $this->parent, $this->values);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ExprBuilder.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ExprBuilder.php
new file mode 100644
index 0000000..7887f2d
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ExprBuilder.php
@@ -0,0 +1,238 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\Exception\UnsetKeyException;
+
+/**
+ * This class builds an if expression.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ * @author Christophe Coevoet <stof@notk.org>
+ */
+class ExprBuilder
+{
+    protected $node;
+    public $ifPart;
+    public $thenPart;
+
+    /**
+     * Constructor.
+     *
+     * @param NodeDefinition $node The related node
+     */
+    public function __construct(NodeDefinition $node)
+    {
+        $this->node = $node;
+    }
+
+    /**
+     * Marks the expression as being always used.
+     *
+     * @param \Closure $then
+     *
+     * @return ExprBuilder
+     */
+    public function always(\Closure $then = null)
+    {
+        $this->ifPart = function ($v) { return true; };
+
+        if (null !== $then) {
+            $this->thenPart = $then;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Sets a closure to use as tests.
+     *
+     * The default one tests if the value is true.
+     *
+     * @param \Closure $closure
+     *
+     * @return ExprBuilder
+     */
+    public function ifTrue(\Closure $closure = null)
+    {
+        if (null === $closure) {
+            $closure = function ($v) { return true === $v; };
+        }
+
+        $this->ifPart = $closure;
+
+        return $this;
+    }
+
+    /**
+     * Tests if the value is a string.
+     *
+     * @return ExprBuilder
+     */
+    public function ifString()
+    {
+        $this->ifPart = function ($v) { return is_string($v); };
+
+        return $this;
+    }
+
+    /**
+     * Tests if the value is null.
+     *
+     * @return ExprBuilder
+     */
+    public function ifNull()
+    {
+        $this->ifPart = function ($v) { return null === $v; };
+
+        return $this;
+    }
+
+    /**
+     * Tests if the value is an array.
+     *
+     * @return ExprBuilder
+     */
+    public function ifArray()
+    {
+        $this->ifPart = function ($v) { return is_array($v); };
+
+        return $this;
+    }
+
+    /**
+     * Tests if the value is in an array.
+     *
+     * @param array $array
+     *
+     * @return ExprBuilder
+     */
+    public function ifInArray(array $array)
+    {
+        $this->ifPart = function ($v) use ($array) { return in_array($v, $array, true); };
+
+        return $this;
+    }
+
+    /**
+     * Tests if the value is not in an array.
+     *
+     * @param array $array
+     *
+     * @return ExprBuilder
+     */
+    public function ifNotInArray(array $array)
+    {
+        $this->ifPart = function ($v) use ($array) { return !in_array($v, $array, true); };
+
+        return $this;
+    }
+
+    /**
+     * Sets the closure to run if the test pass.
+     *
+     * @param \Closure $closure
+     *
+     * @return ExprBuilder
+     */
+    public function then(\Closure $closure)
+    {
+        $this->thenPart = $closure;
+
+        return $this;
+    }
+
+    /**
+     * Sets a closure returning an empty array.
+     *
+     * @return ExprBuilder
+     */
+    public function thenEmptyArray()
+    {
+        $this->thenPart = function ($v) { return array(); };
+
+        return $this;
+    }
+
+    /**
+     * Sets a closure marking the value as invalid at validation time.
+     *
+     * if you want to add the value of the node in your message just use a %s placeholder.
+     *
+     * @param string $message
+     *
+     * @return ExprBuilder
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function thenInvalid($message)
+    {
+        $this->thenPart = function ($v) use ($message) {throw new \InvalidArgumentException(sprintf($message, json_encode($v))); };
+
+        return $this;
+    }
+
+    /**
+     * Sets a closure unsetting this key of the array at validation time.
+     *
+     * @return ExprBuilder
+     *
+     * @throws UnsetKeyException
+     */
+    public function thenUnset()
+    {
+        $this->thenPart = function ($v) { throw new UnsetKeyException('Unsetting key'); };
+
+        return $this;
+    }
+
+    /**
+     * Returns the related node.
+     *
+     * @return NodeDefinition
+     *
+     * @throws \RuntimeException
+     */
+    public function end()
+    {
+        if (null === $this->ifPart) {
+            throw new \RuntimeException('You must specify an if part.');
+        }
+        if (null === $this->thenPart) {
+            throw new \RuntimeException('You must specify a then part.');
+        }
+
+        return $this->node;
+    }
+
+    /**
+     * Builds the expressions.
+     *
+     * @param ExprBuilder[] $expressions An array of ExprBuilder instances to build
+     *
+     * @return array
+     */
+    public static function buildExpressions(array $expressions)
+    {
+        foreach ($expressions as $k => $expr) {
+            if ($expr instanceof ExprBuilder) {
+                $if = $expr->ifPart;
+                $then = $expr->thenPart;
+                $expressions[$k] = function ($v) use ($if, $then) {
+                    return $if($v) ? $then($v) : $v;
+                };
+            }
+        }
+
+        return $expressions;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/FloatNodeDefinition.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/FloatNodeDefinition.php
new file mode 100644
index 0000000..c0bed46
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/FloatNodeDefinition.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\FloatNode;
+
+/**
+ * This class provides a fluent interface for defining a float node.
+ *
+ * @author Jeanmonod David <david.jeanmonod@gmail.com>
+ */
+class FloatNodeDefinition extends NumericNodeDefinition
+{
+    /**
+     * Instantiates a Node.
+     *
+     * @return FloatNode The node
+     */
+    protected function instantiateNode()
+    {
+        return new FloatNode($this->name, $this->parent, $this->min, $this->max);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/IntegerNodeDefinition.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/IntegerNodeDefinition.php
new file mode 100644
index 0000000..f6c3c14
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/IntegerNodeDefinition.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\IntegerNode;
+
+/**
+ * This class provides a fluent interface for defining an integer node.
+ *
+ * @author Jeanmonod David <david.jeanmonod@gmail.com>
+ */
+class IntegerNodeDefinition extends NumericNodeDefinition
+{
+    /**
+     * Instantiates a Node.
+     *
+     * @return IntegerNode The node
+     */
+    protected function instantiateNode()
+    {
+        return new IntegerNode($this->name, $this->parent, $this->min, $this->max);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/MergeBuilder.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/MergeBuilder.php
new file mode 100644
index 0000000..f908a49
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/MergeBuilder.php
@@ -0,0 +1,72 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * This class builds merge conditions.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class MergeBuilder
+{
+    protected $node;
+    public $allowFalse = false;
+    public $allowOverwrite = true;
+
+    /**
+     * Constructor.
+     *
+     * @param NodeDefinition $node The related node
+     */
+    public function __construct(NodeDefinition $node)
+    {
+        $this->node = $node;
+    }
+
+    /**
+     * Sets whether the node can be unset.
+     *
+     * @param bool $allow
+     *
+     * @return MergeBuilder
+     */
+    public function allowUnset($allow = true)
+    {
+        $this->allowFalse = $allow;
+
+        return $this;
+    }
+
+    /**
+     * Sets whether the node can be overwritten.
+     *
+     * @param bool $deny Whether the overwriting is forbidden or not
+     *
+     * @return MergeBuilder
+     */
+    public function denyOverwrite($deny = true)
+    {
+        $this->allowOverwrite = !$deny;
+
+        return $this;
+    }
+
+    /**
+     * Returns the related node.
+     *
+     * @return NodeDefinition
+     */
+    public function end()
+    {
+        return $this->node;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NodeBuilder.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NodeBuilder.php
new file mode 100644
index 0000000..b2b6336
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NodeBuilder.php
@@ -0,0 +1,245 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * This class provides a fluent interface for building a node.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class NodeBuilder implements NodeParentInterface
+{
+    protected $parent;
+    protected $nodeMapping;
+
+    /**
+     * Constructor.
+     */
+    public function __construct()
+    {
+        $this->nodeMapping = array(
+            'variable' => __NAMESPACE__.'\\VariableNodeDefinition',
+            'scalar' => __NAMESPACE__.'\\ScalarNodeDefinition',
+            'boolean' => __NAMESPACE__.'\\BooleanNodeDefinition',
+            'integer' => __NAMESPACE__.'\\IntegerNodeDefinition',
+            'float' => __NAMESPACE__.'\\FloatNodeDefinition',
+            'array' => __NAMESPACE__.'\\ArrayNodeDefinition',
+            'enum' => __NAMESPACE__.'\\EnumNodeDefinition',
+        );
+    }
+
+    /**
+     * Set the parent node.
+     *
+     * @param ParentNodeDefinitionInterface $parent The parent node
+     *
+     * @return NodeBuilder This node builder
+     */
+    public function setParent(ParentNodeDefinitionInterface $parent = null)
+    {
+        $this->parent = $parent;
+
+        return $this;
+    }
+
+    /**
+     * Creates a child array node.
+     *
+     * @param string $name The name of the node
+     *
+     * @return ArrayNodeDefinition The child node
+     */
+    public function arrayNode($name)
+    {
+        return $this->node($name, 'array');
+    }
+
+    /**
+     * Creates a child scalar node.
+     *
+     * @param string $name the name of the node
+     *
+     * @return ScalarNodeDefinition The child node
+     */
+    public function scalarNode($name)
+    {
+        return $this->node($name, 'scalar');
+    }
+
+    /**
+     * Creates a child Boolean node.
+     *
+     * @param string $name The name of the node
+     *
+     * @return BooleanNodeDefinition The child node
+     */
+    public function booleanNode($name)
+    {
+        return $this->node($name, 'boolean');
+    }
+
+    /**
+     * Creates a child integer node.
+     *
+     * @param string $name the name of the node
+     *
+     * @return IntegerNodeDefinition The child node
+     */
+    public function integerNode($name)
+    {
+        return $this->node($name, 'integer');
+    }
+
+    /**
+     * Creates a child float node.
+     *
+     * @param string $name the name of the node
+     *
+     * @return FloatNodeDefinition The child node
+     */
+    public function floatNode($name)
+    {
+        return $this->node($name, 'float');
+    }
+
+    /**
+     * Creates a child EnumNode.
+     *
+     * @param string $name
+     *
+     * @return EnumNodeDefinition
+     */
+    public function enumNode($name)
+    {
+        return $this->node($name, 'enum');
+    }
+
+    /**
+     * Creates a child variable node.
+     *
+     * @param string $name The name of the node
+     *
+     * @return VariableNodeDefinition The builder of the child node
+     */
+    public function variableNode($name)
+    {
+        return $this->node($name, 'variable');
+    }
+
+    /**
+     * Returns the parent node.
+     *
+     * @return ParentNodeDefinitionInterface The parent node
+     */
+    public function end()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Creates a child node.
+     *
+     * @param string $name The name of the node
+     * @param string $type The type of the node
+     *
+     * @return NodeDefinition The child node
+     *
+     * @throws \RuntimeException When the node type is not registered
+     * @throws \RuntimeException When the node class is not found
+     */
+    public function node($name, $type)
+    {
+        $class = $this->getNodeClass($type);
+
+        $node = new $class($name);
+
+        $this->append($node);
+
+        return $node;
+    }
+
+    /**
+     * Appends a node definition.
+     *
+     * Usage:
+     *
+     *     $node = new ArrayNodeDefinition('name')
+     *         ->children()
+     *             ->scalarNode('foo')->end()
+     *             ->scalarNode('baz')->end()
+     *             ->append($this->getBarNodeDefinition())
+     *         ->end()
+     *     ;
+     *
+     * @param NodeDefinition $node
+     *
+     * @return NodeBuilder This node builder
+     */
+    public function append(NodeDefinition $node)
+    {
+        if ($node instanceof ParentNodeDefinitionInterface) {
+            $builder = clone $this;
+            $builder->setParent(null);
+            $node->setBuilder($builder);
+        }
+
+        if (null !== $this->parent) {
+            $this->parent->append($node);
+            // Make this builder the node parent to allow for a fluid interface
+            $node->setParent($this);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Adds or overrides a node Type.
+     *
+     * @param string $type  The name of the type
+     * @param string $class The fully qualified name the node definition class
+     *
+     * @return NodeBuilder This node builder
+     */
+    public function setNodeClass($type, $class)
+    {
+        $this->nodeMapping[strtolower($type)] = $class;
+
+        return $this;
+    }
+
+    /**
+     * Returns the class name of the node definition.
+     *
+     * @param string $type The node type
+     *
+     * @return string The node definition class name
+     *
+     * @throws \RuntimeException When the node type is not registered
+     * @throws \RuntimeException When the node class is not found
+     */
+    protected function getNodeClass($type)
+    {
+        $type = strtolower($type);
+
+        if (!isset($this->nodeMapping[$type])) {
+            throw new \RuntimeException(sprintf('The node type "%s" is not registered.', $type));
+        }
+
+        $class = $this->nodeMapping[$type];
+
+        if (!class_exists($class)) {
+            throw new \RuntimeException(sprintf('The node class "%s" does not exist.', $class));
+        }
+
+        return $class;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NodeDefinition.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NodeDefinition.php
new file mode 100644
index 0000000..f7f84bc
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NodeDefinition.php
@@ -0,0 +1,343 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\NodeInterface;
+use Symfony\Component\Config\Definition\Exception\InvalidDefinitionException;
+
+/**
+ * This class provides a fluent interface for defining a node.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+abstract class NodeDefinition implements NodeParentInterface
+{
+    protected $name;
+    protected $normalization;
+    protected $validation;
+    protected $defaultValue;
+    protected $default = false;
+    protected $required = false;
+    protected $merge;
+    protected $allowEmptyValue = true;
+    protected $nullEquivalent;
+    protected $trueEquivalent = true;
+    protected $falseEquivalent = false;
+
+    /**
+     * @var NodeParentInterface|null
+     */
+    protected $parent;
+    protected $attributes = array();
+
+    /**
+     * Constructor.
+     *
+     * @param string                   $name   The name of the node
+     * @param NodeParentInterface|null $parent The parent
+     */
+    public function __construct($name, NodeParentInterface $parent = null)
+    {
+        $this->parent = $parent;
+        $this->name = $name;
+    }
+
+    /**
+     * Sets the parent node.
+     *
+     * @param NodeParentInterface $parent The parent
+     *
+     * @return NodeDefinition|$this
+     */
+    public function setParent(NodeParentInterface $parent)
+    {
+        $this->parent = $parent;
+
+        return $this;
+    }
+
+    /**
+     * Sets info message.
+     *
+     * @param string $info The info text
+     *
+     * @return NodeDefinition|$this
+     */
+    public function info($info)
+    {
+        return $this->attribute('info', $info);
+    }
+
+    /**
+     * Sets example configuration.
+     *
+     * @param string|array $example
+     *
+     * @return NodeDefinition|$this
+     */
+    public function example($example)
+    {
+        return $this->attribute('example', $example);
+    }
+
+    /**
+     * Sets an attribute on the node.
+     *
+     * @param string $key
+     * @param mixed  $value
+     *
+     * @return NodeDefinition|$this
+     */
+    public function attribute($key, $value)
+    {
+        $this->attributes[$key] = $value;
+
+        return $this;
+    }
+
+    /**
+     * Returns the parent node.
+     *
+     * @return NodeParentInterface|null The builder of the parent node
+     */
+    public function end()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Creates the node.
+     *
+     * @param bool $forceRootNode Whether to force this node as the root node
+     *
+     * @return NodeInterface
+     */
+    public function getNode($forceRootNode = false)
+    {
+        if ($forceRootNode) {
+            $this->parent = null;
+        }
+
+        if (null !== $this->normalization) {
+            $this->normalization->before = ExprBuilder::buildExpressions($this->normalization->before);
+        }
+
+        if (null !== $this->validation) {
+            $this->validation->rules = ExprBuilder::buildExpressions($this->validation->rules);
+        }
+
+        $node = $this->createNode();
+        $node->setAttributes($this->attributes);
+
+        return $node;
+    }
+
+    /**
+     * Sets the default value.
+     *
+     * @param mixed $value The default value
+     *
+     * @return NodeDefinition|$this
+     */
+    public function defaultValue($value)
+    {
+        $this->default = true;
+        $this->defaultValue = $value;
+
+        return $this;
+    }
+
+    /**
+     * Sets the node as required.
+     *
+     * @return NodeDefinition|$this
+     */
+    public function isRequired()
+    {
+        $this->required = true;
+
+        return $this;
+    }
+
+    /**
+     * Sets the equivalent value used when the node contains null.
+     *
+     * @param mixed $value
+     *
+     * @return NodeDefinition|$this
+     */
+    public function treatNullLike($value)
+    {
+        $this->nullEquivalent = $value;
+
+        return $this;
+    }
+
+    /**
+     * Sets the equivalent value used when the node contains true.
+     *
+     * @param mixed $value
+     *
+     * @return NodeDefinition|$this
+     */
+    public function treatTrueLike($value)
+    {
+        $this->trueEquivalent = $value;
+
+        return $this;
+    }
+
+    /**
+     * Sets the equivalent value used when the node contains false.
+     *
+     * @param mixed $value
+     *
+     * @return NodeDefinition|$this
+     */
+    public function treatFalseLike($value)
+    {
+        $this->falseEquivalent = $value;
+
+        return $this;
+    }
+
+    /**
+     * Sets null as the default value.
+     *
+     * @return NodeDefinition|$this
+     */
+    public function defaultNull()
+    {
+        return $this->defaultValue(null);
+    }
+
+    /**
+     * Sets true as the default value.
+     *
+     * @return NodeDefinition|$this
+     */
+    public function defaultTrue()
+    {
+        return $this->defaultValue(true);
+    }
+
+    /**
+     * Sets false as the default value.
+     *
+     * @return NodeDefinition|$this
+     */
+    public function defaultFalse()
+    {
+        return $this->defaultValue(false);
+    }
+
+    /**
+     * Sets an expression to run before the normalization.
+     *
+     * @return ExprBuilder
+     */
+    public function beforeNormalization()
+    {
+        return $this->normalization()->before();
+    }
+
+    /**
+     * Denies the node value being empty.
+     *
+     * @return NodeDefinition|$this
+     */
+    public function cannotBeEmpty()
+    {
+        $this->allowEmptyValue = false;
+
+        return $this;
+    }
+
+    /**
+     * Sets an expression to run for the validation.
+     *
+     * The expression receives the value of the node and must return it. It can
+     * modify it.
+     * An exception should be thrown when the node is not valid.
+     *
+     * @return ExprBuilder
+     */
+    public function validate()
+    {
+        return $this->validation()->rule();
+    }
+
+    /**
+     * Sets whether the node can be overwritten.
+     *
+     * @param bool $deny Whether the overwriting is forbidden or not
+     *
+     * @return NodeDefinition|$this
+     */
+    public function cannotBeOverwritten($deny = true)
+    {
+        $this->merge()->denyOverwrite($deny);
+
+        return $this;
+    }
+
+    /**
+     * Gets the builder for validation rules.
+     *
+     * @return ValidationBuilder
+     */
+    protected function validation()
+    {
+        if (null === $this->validation) {
+            $this->validation = new ValidationBuilder($this);
+        }
+
+        return $this->validation;
+    }
+
+    /**
+     * Gets the builder for merging rules.
+     *
+     * @return MergeBuilder
+     */
+    protected function merge()
+    {
+        if (null === $this->merge) {
+            $this->merge = new MergeBuilder($this);
+        }
+
+        return $this->merge;
+    }
+
+    /**
+     * Gets the builder for normalization rules.
+     *
+     * @return NormalizationBuilder
+     */
+    protected function normalization()
+    {
+        if (null === $this->normalization) {
+            $this->normalization = new NormalizationBuilder($this);
+        }
+
+        return $this->normalization;
+    }
+
+    /**
+     * Instantiate and configure the node according to this definition.
+     *
+     * @return NodeInterface $node The node instance
+     *
+     * @throws InvalidDefinitionException When the definition is invalid
+     */
+    abstract protected function createNode();
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NodeParentInterface.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NodeParentInterface.php
new file mode 100644
index 0000000..305e993
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NodeParentInterface.php
@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * An interface that must be implemented by all node parents.
+ *
+ * @author Victor Berchet <victor@suumit.com>
+ */
+interface NodeParentInterface
+{
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NormalizationBuilder.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NormalizationBuilder.php
new file mode 100644
index 0000000..748c9f2
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NormalizationBuilder.php
@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * This class builds normalization conditions.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class NormalizationBuilder
+{
+    protected $node;
+    public $before = array();
+    public $remappings = array();
+
+    /**
+     * Constructor.
+     *
+     * @param NodeDefinition $node The related node
+     */
+    public function __construct(NodeDefinition $node)
+    {
+        $this->node = $node;
+    }
+
+    /**
+     * Registers a key to remap to its plural form.
+     *
+     * @param string $key    The key to remap
+     * @param string $plural The plural of the key in case of irregular plural
+     *
+     * @return NormalizationBuilder
+     */
+    public function remap($key, $plural = null)
+    {
+        $this->remappings[] = array($key, null === $plural ? $key.'s' : $plural);
+
+        return $this;
+    }
+
+    /**
+     * Registers a closure to run before the normalization or an expression builder to build it if null is provided.
+     *
+     * @param \Closure $closure
+     *
+     * @return ExprBuilder|NormalizationBuilder
+     */
+    public function before(\Closure $closure = null)
+    {
+        if (null !== $closure) {
+            $this->before[] = $closure;
+
+            return $this;
+        }
+
+        return $this->before[] = new ExprBuilder($this->node);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NumericNodeDefinition.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NumericNodeDefinition.php
new file mode 100644
index 0000000..ddd716d
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/NumericNodeDefinition.php
@@ -0,0 +1,61 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * Abstract class that contains common code of integer and float node definitions.
+ *
+ * @author David Jeanmonod <david.jeanmonod@gmail.com>
+ */
+abstract class NumericNodeDefinition extends ScalarNodeDefinition
+{
+    protected $min;
+    protected $max;
+
+    /**
+     * Ensures that the value is smaller than the given reference.
+     *
+     * @param mixed $max
+     *
+     * @return NumericNodeDefinition
+     *
+     * @throws \InvalidArgumentException when the constraint is inconsistent
+     */
+    public function max($max)
+    {
+        if (isset($this->min) && $this->min > $max) {
+            throw new \InvalidArgumentException(sprintf('You cannot define a max(%s) as you already have a min(%s)', $max, $this->min));
+        }
+        $this->max = $max;
+
+        return $this;
+    }
+
+    /**
+     * Ensures that the value is bigger than the given reference.
+     *
+     * @param mixed $min
+     *
+     * @return NumericNodeDefinition
+     *
+     * @throws \InvalidArgumentException when the constraint is inconsistent
+     */
+    public function min($min)
+    {
+        if (isset($this->max) && $this->max < $min) {
+            throw new \InvalidArgumentException(sprintf('You cannot define a min(%s) as you already have a max(%s)', $min, $this->max));
+        }
+        $this->min = $min;
+
+        return $this;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ParentNodeDefinitionInterface.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ParentNodeDefinitionInterface.php
new file mode 100644
index 0000000..575495b
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ParentNodeDefinitionInterface.php
@@ -0,0 +1,26 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * An interface that must be implemented by nodes which can have children.
+ *
+ * @author Victor Berchet <victor@suumit.com>
+ */
+interface ParentNodeDefinitionInterface
+{
+    public function children();
+
+    public function append(NodeDefinition $node);
+
+    public function setBuilder(NodeBuilder $builder);
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ScalarNodeDefinition.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ScalarNodeDefinition.php
new file mode 100644
index 0000000..6170555
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ScalarNodeDefinition.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\ScalarNode;
+
+/**
+ * This class provides a fluent interface for defining a node.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ScalarNodeDefinition extends VariableNodeDefinition
+{
+    /**
+     * Instantiate a Node.
+     *
+     * @return ScalarNode The node
+     */
+    protected function instantiateNode()
+    {
+        return new ScalarNode($this->name, $this->parent);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/TreeBuilder.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/TreeBuilder.php
new file mode 100644
index 0000000..5d02848
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/TreeBuilder.php
@@ -0,0 +1,63 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\NodeInterface;
+
+/**
+ * This is the entry class for building a config tree.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class TreeBuilder implements NodeParentInterface
+{
+    protected $tree;
+    protected $root;
+    protected $builder;
+
+    /**
+     * Creates the root node.
+     *
+     * @param string      $name    The name of the root node
+     * @param string      $type    The type of the root node
+     * @param NodeBuilder $builder A custom node builder instance
+     *
+     * @return ArrayNodeDefinition|NodeDefinition The root node (as an ArrayNodeDefinition when the type is 'array')
+     *
+     * @throws \RuntimeException When the node type is not supported
+     */
+    public function root($name, $type = 'array', NodeBuilder $builder = null)
+    {
+        $builder = $builder ?: new NodeBuilder();
+
+        return $this->root = $builder->node($name, $type)->setParent($this);
+    }
+
+    /**
+     * Builds the tree.
+     *
+     * @return NodeInterface
+     *
+     * @throws \RuntimeException
+     */
+    public function buildTree()
+    {
+        if (null === $this->root) {
+            throw new \RuntimeException('The configuration tree has no root node.');
+        }
+        if (null !== $this->tree) {
+            return $this->tree;
+        }
+
+        return $this->tree = $this->root->getNode(true);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ValidationBuilder.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ValidationBuilder.php
new file mode 100644
index 0000000..e885823
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/ValidationBuilder.php
@@ -0,0 +1,51 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * This class builds validation conditions.
+ *
+ * @author Christophe Coevoet <stof@notk.org>
+ */
+class ValidationBuilder
+{
+    protected $node;
+    public $rules = array();
+
+    /**
+     * Constructor.
+     *
+     * @param NodeDefinition $node The related node
+     */
+    public function __construct(NodeDefinition $node)
+    {
+        $this->node = $node;
+    }
+
+    /**
+     * Registers a closure to run as normalization or an expression builder to build it if null is provided.
+     *
+     * @param \Closure $closure
+     *
+     * @return ExprBuilder|ValidationBuilder
+     */
+    public function rule(\Closure $closure = null)
+    {
+        if (null !== $closure) {
+            $this->rules[] = $closure;
+
+            return $this;
+        }
+
+        return $this->rules[] = new ExprBuilder($this->node);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/VariableNodeDefinition.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/VariableNodeDefinition.php
new file mode 100644
index 0000000..a46b7ea
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Builder/VariableNodeDefinition.php
@@ -0,0 +1,64 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\VariableNode;
+
+/**
+ * This class provides a fluent interface for defining a node.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class VariableNodeDefinition extends NodeDefinition
+{
+    /**
+     * Instantiate a Node.
+     *
+     * @return VariableNode The node
+     */
+    protected function instantiateNode()
+    {
+        return new VariableNode($this->name, $this->parent);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function createNode()
+    {
+        $node = $this->instantiateNode();
+
+        if (null !== $this->normalization) {
+            $node->setNormalizationClosures($this->normalization->before);
+        }
+
+        if (null !== $this->merge) {
+            $node->setAllowOverwrite($this->merge->allowOverwrite);
+        }
+
+        if (true === $this->default) {
+            $node->setDefaultValue($this->defaultValue);
+        }
+
+        $node->setAllowEmptyValue($this->allowEmptyValue);
+        $node->addEquivalentValue(null, $this->nullEquivalent);
+        $node->addEquivalentValue(true, $this->trueEquivalent);
+        $node->addEquivalentValue(false, $this->falseEquivalent);
+        $node->setRequired($this->required);
+
+        if (null !== $this->validation) {
+            $node->setFinalValidationClosures($this->validation->rules);
+        }
+
+        return $node;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/ConfigurationInterface.php b/vendor/symfony/config/Symfony/Component/Config/Definition/ConfigurationInterface.php
new file mode 100644
index 0000000..d6456ed
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/ConfigurationInterface.php
@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+/**
+ * Configuration interface.
+ *
+ * @author Victor Berchet <victor@suumit.com>
+ */
+interface ConfigurationInterface
+{
+    /**
+     * Generates the configuration tree builder.
+     *
+     * @return \Symfony\Component\Config\Definition\Builder\TreeBuilder The tree builder
+     */
+    public function getConfigTreeBuilder();
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Dumper/XmlReferenceDumper.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Dumper/XmlReferenceDumper.php
new file mode 100644
index 0000000..ab56a92
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Dumper/XmlReferenceDumper.php
@@ -0,0 +1,300 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Dumper;
+
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+use Symfony\Component\Config\Definition\NodeInterface;
+use Symfony\Component\Config\Definition\ArrayNode;
+use Symfony\Component\Config\Definition\EnumNode;
+use Symfony\Component\Config\Definition\PrototypedArrayNode;
+
+/**
+ * Dumps a XML reference configuration for the given configuration/node instance.
+ *
+ * @author Wouter J <waldio.webdesign@gmail.com>
+ */
+class XmlReferenceDumper
+{
+    private $reference;
+
+    public function dump(ConfigurationInterface $configuration, $namespace = null)
+    {
+        return $this->dumpNode($configuration->getConfigTreeBuilder()->buildTree(), $namespace);
+    }
+
+    public function dumpNode(NodeInterface $node, $namespace = null)
+    {
+        $this->reference = '';
+        $this->writeNode($node, 0, true, $namespace);
+        $ref = $this->reference;
+        $this->reference = null;
+
+        return $ref;
+    }
+
+    /**
+     * @param NodeInterface $node
+     * @param int           $depth
+     * @param bool          $root      If the node is the root node
+     * @param string        $namespace The namespace of the node
+     */
+    private function writeNode(NodeInterface $node, $depth = 0, $root = false, $namespace = null)
+    {
+        $rootName = ($root ? 'config' : $node->getName());
+        $rootNamespace = ($namespace ?: ($root ? 'http://example.org/schema/dic/'.$node->getName() : null));
+
+        // xml remapping
+        if ($node->getParent()) {
+            $remapping = array_filter($node->getParent()->getXmlRemappings(), function ($mapping) use ($rootName) {
+                return $rootName === $mapping[1];
+            });
+
+            if (count($remapping)) {
+                list($singular) = current($remapping);
+                $rootName = $singular;
+            }
+        }
+        $rootName = str_replace('_', '-', $rootName);
+
+        $rootAttributes = array();
+        $rootAttributeComments = array();
+        $rootChildren = array();
+        $rootComments = array();
+
+        if ($node instanceof ArrayNode) {
+            $children = $node->getChildren();
+
+            // comments about the root node
+            if ($rootInfo = $node->getInfo()) {
+                $rootComments[] = $rootInfo;
+            }
+
+            if ($rootNamespace) {
+                $rootComments[] = 'Namespace: '.$rootNamespace;
+            }
+
+            // render prototyped nodes
+            if ($node instanceof PrototypedArrayNode) {
+                array_unshift($rootComments, 'prototype');
+
+                if ($key = $node->getKeyAttribute()) {
+                    $rootAttributes[$key] = str_replace('-', ' ', $rootName).' '.$key;
+                }
+
+                $prototype = $node->getPrototype();
+
+                if ($prototype instanceof ArrayNode) {
+                    $children = $prototype->getChildren();
+                } else {
+                    if ($prototype->hasDefaultValue()) {
+                        $prototypeValue = $prototype->getDefaultValue();
+                    } else {
+                        switch (get_class($prototype)) {
+                            case 'Symfony\Component\Config\Definition\ScalarNode':
+                                $prototypeValue = 'scalar value';
+                                break;
+
+                            case 'Symfony\Component\Config\Definition\FloatNode':
+                            case 'Symfony\Component\Config\Definition\IntegerNode':
+                                $prototypeValue = 'numeric value';
+                                break;
+
+                            case 'Symfony\Component\Config\Definition\BooleanNode':
+                                $prototypeValue = 'true|false';
+                                break;
+
+                            case 'Symfony\Component\Config\Definition\EnumNode':
+                                $prototypeValue = implode('|', array_map('json_encode', $prototype->getValues()));
+                                break;
+
+                            default:
+                                $prototypeValue = 'value';
+                        }
+                    }
+                }
+            }
+
+            // get attributes and elements
+            foreach ($children as $child) {
+                if (!$child instanceof ArrayNode) {
+                    // get attributes
+
+                    // metadata
+                    $name = str_replace('_', '-', $child->getName());
+                    $value = '%%%%not_defined%%%%'; // use a string which isn't used in the normal world
+
+                    // comments
+                    $comments = array();
+                    if ($info = $child->getInfo()) {
+                        $comments[] = $info;
+                    }
+
+                    if ($example = $child->getExample()) {
+                        $comments[] = 'Example: '.$example;
+                    }
+
+                    if ($child->isRequired()) {
+                        $comments[] = 'Required';
+                    }
+
+                    if ($child instanceof EnumNode) {
+                        $comments[] = 'One of '.implode('; ', array_map('json_encode', $child->getValues()));
+                    }
+
+                    if (count($comments)) {
+                        $rootAttributeComments[$name] = implode(";\n", $comments);
+                    }
+
+                    // default values
+                    if ($child->hasDefaultValue()) {
+                        $value = $child->getDefaultValue();
+                    }
+
+                    // append attribute
+                    $rootAttributes[$name] = $value;
+                } else {
+                    // get elements
+                    $rootChildren[] = $child;
+                }
+            }
+        }
+
+        // render comments
+
+        // root node comment
+        if (count($rootComments)) {
+            foreach ($rootComments as $comment) {
+                $this->writeLine('<!-- '.$comment.' -->', $depth);
+            }
+        }
+
+        // attribute comments
+        if (count($rootAttributeComments)) {
+            foreach ($rootAttributeComments as $attrName => $comment) {
+                $commentDepth = $depth + 4 + strlen($attrName) + 2;
+                $commentLines = explode("\n", $comment);
+                $multiline = (count($commentLines) > 1);
+                $comment = implode(PHP_EOL.str_repeat(' ', $commentDepth), $commentLines);
+
+                if ($multiline) {
+                    $this->writeLine('<!--', $depth);
+                    $this->writeLine($attrName.': '.$comment, $depth + 4);
+                    $this->writeLine('-->', $depth);
+                } else {
+                    $this->writeLine('<!-- '.$attrName.': '.$comment.' -->', $depth);
+                }
+            }
+        }
+
+        // render start tag + attributes
+        $rootIsVariablePrototype = isset($prototypeValue);
+        $rootIsEmptyTag = (0 === count($rootChildren) && !$rootIsVariablePrototype);
+        $rootOpenTag = '<'.$rootName;
+        if (1 >= ($attributesCount = count($rootAttributes))) {
+            if (1 === $attributesCount) {
+                $rootOpenTag .= sprintf(' %s="%s"', current(array_keys($rootAttributes)), $this->writeValue(current($rootAttributes)));
+            }
+
+            $rootOpenTag .= $rootIsEmptyTag ? ' />' : '>';
+
+            if ($rootIsVariablePrototype) {
+                $rootOpenTag .= $prototypeValue.'</'.$rootName.'>';
+            }
+
+            $this->writeLine($rootOpenTag, $depth);
+        } else {
+            $this->writeLine($rootOpenTag, $depth);
+
+            $i = 1;
+
+            foreach ($rootAttributes as $attrName => $attrValue) {
+                $attr = sprintf('%s="%s"', $attrName, $this->writeValue($attrValue));
+
+                $this->writeLine($attr, $depth + 4);
+
+                if ($attributesCount === $i++) {
+                    $this->writeLine($rootIsEmptyTag ? '/>' : '>', $depth);
+
+                    if ($rootIsVariablePrototype) {
+                        $rootOpenTag .= $prototypeValue.'</'.$rootName.'>';
+                    }
+                }
+            }
+        }
+
+        // render children tags
+        foreach ($rootChildren as $child) {
+            $this->writeLine('');
+            $this->writeNode($child, $depth + 4);
+        }
+
+        // render end tag
+        if (!$rootIsEmptyTag && !$rootIsVariablePrototype) {
+            $this->writeLine('');
+
+            $rootEndTag = '</'.$rootName.'>';
+            $this->writeLine($rootEndTag, $depth);
+        }
+    }
+
+    /**
+     * Outputs a single config reference line
+     *
+     * @param string $text
+     * @param int    $indent
+     */
+    private function writeLine($text, $indent = 0)
+    {
+        $indent = strlen($text) + $indent;
+        $format = '%'.$indent.'s';
+
+        $this->reference .= sprintf($format, $text)."\n";
+    }
+
+    /**
+     * Renders the string conversion of the value.
+     *
+     * @param mixed $value
+     *
+     * @return string
+     */
+    private function writeValue($value)
+    {
+        if ('%%%%not_defined%%%%' === $value) {
+            return '';
+        }
+
+        if (is_string($value) || is_numeric($value)) {
+            return $value;
+        }
+
+        if (false === $value) {
+            return 'false';
+        }
+
+        if (true === $value) {
+            return 'true';
+        }
+
+        if (null === $value) {
+            return 'null';
+        }
+
+        if (empty($value)) {
+            return '';
+        }
+
+        if (is_array($value)) {
+            return implode(',', $value);
+        }
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Dumper/YamlReferenceDumper.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Dumper/YamlReferenceDumper.php
new file mode 100644
index 0000000..a7cd448
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Dumper/YamlReferenceDumper.php
@@ -0,0 +1,198 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Dumper;
+
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+use Symfony\Component\Config\Definition\NodeInterface;
+use Symfony\Component\Config\Definition\ArrayNode;
+use Symfony\Component\Config\Definition\EnumNode;
+use Symfony\Component\Config\Definition\PrototypedArrayNode;
+use Symfony\Component\Yaml\Inline;
+
+/**
+ * Dumps a Yaml reference configuration for the given configuration/node instance.
+ *
+ * @author Kevin Bond <kevinbond@gmail.com>
+ */
+class YamlReferenceDumper
+{
+    private $reference;
+
+    public function dump(ConfigurationInterface $configuration)
+    {
+        return $this->dumpNode($configuration->getConfigTreeBuilder()->buildTree());
+    }
+
+    public function dumpNode(NodeInterface $node)
+    {
+        $this->reference = '';
+        $this->writeNode($node);
+        $ref = $this->reference;
+        $this->reference = null;
+
+        return $ref;
+    }
+
+    /**
+     * @param NodeInterface $node
+     * @param int           $depth
+     */
+    private function writeNode(NodeInterface $node, $depth = 0)
+    {
+        $comments = array();
+        $default = '';
+        $defaultArray = null;
+        $children = null;
+        $example = $node->getExample();
+
+        // defaults
+        if ($node instanceof ArrayNode) {
+            $children = $node->getChildren();
+
+            if ($node instanceof PrototypedArrayNode) {
+                $prototype = $node->getPrototype();
+
+                if ($prototype instanceof ArrayNode) {
+                    $children = $prototype->getChildren();
+                }
+
+                // check for attribute as key
+                if ($key = $node->getKeyAttribute()) {
+                    $keyNodeClass = 'Symfony\Component\Config\Definition\\'.($prototype instanceof ArrayNode ? 'ArrayNode' : 'ScalarNode');
+                    $keyNode = new $keyNodeClass($key, $node);
+                    $keyNode->setInfo('Prototype');
+
+                    // add children
+                    foreach ($children as $childNode) {
+                        $keyNode->addChild($childNode);
+                    }
+                    $children = array($key => $keyNode);
+                }
+            }
+
+            if (!$children) {
+                if ($node->hasDefaultValue() && count($defaultArray = $node->getDefaultValue())) {
+                    $default = '';
+                } elseif (!is_array($example)) {
+                    $default = '[]';
+                }
+            }
+        } elseif ($node instanceof EnumNode) {
+            $comments[] = 'One of '.implode('; ', array_map('json_encode', $node->getValues()));
+            $default = '~';
+        } else {
+            $default = '~';
+
+            if ($node->hasDefaultValue()) {
+                $default = $node->getDefaultValue();
+
+                if (is_array($default)) {
+                    if (count($defaultArray = $node->getDefaultValue())) {
+                        $default = '';
+                    } elseif (!is_array($example)) {
+                        $default = '[]';
+                    }
+                } else {
+                    $default = Inline::dump($default);
+                }
+            }
+        }
+
+        // required?
+        if ($node->isRequired()) {
+            $comments[] = 'Required';
+        }
+
+        // example
+        if ($example && !is_array($example)) {
+            $comments[] = 'Example: '.$example;
+        }
+
+        $default = (string) $default != '' ? ' '.$default : '';
+        $comments = count($comments) ? '# '.implode(', ', $comments) : '';
+
+        $text = rtrim(sprintf('%-20s %s %s', $node->getName().':', $default, $comments), ' ');
+
+        if ($info = $node->getInfo()) {
+            $this->writeLine('');
+            // indenting multi-line info
+            $info = str_replace("\n", sprintf("\n%".($depth * 4)."s# ", ' '), $info);
+            $this->writeLine('# '.$info, $depth * 4);
+        }
+
+        $this->writeLine($text, $depth * 4);
+
+        // output defaults
+        if ($defaultArray) {
+            $this->writeLine('');
+
+            $message = count($defaultArray) > 1 ? 'Defaults' : 'Default';
+
+            $this->writeLine('# '.$message.':', $depth * 4 + 4);
+
+            $this->writeArray($defaultArray, $depth + 1);
+        }
+
+        if (is_array($example)) {
+            $this->writeLine('');
+
+            $message = count($example) > 1 ? 'Examples' : 'Example';
+
+            $this->writeLine('# '.$message.':', $depth * 4 + 4);
+
+            $this->writeArray($example, $depth + 1);
+        }
+
+        if ($children) {
+            foreach ($children as $childNode) {
+                $this->writeNode($childNode, $depth + 1);
+            }
+        }
+    }
+
+    /**
+     * Outputs a single config reference line
+     *
+     * @param string $text
+     * @param int    $indent
+     */
+    private function writeLine($text, $indent = 0)
+    {
+        $indent = strlen($text) + $indent;
+        $format = '%'.$indent.'s';
+
+        $this->reference .= sprintf($format, $text)."\n";
+    }
+
+    private function writeArray(array $array, $depth)
+    {
+        $isIndexed = array_values($array) === $array;
+
+        foreach ($array as $key => $value) {
+            if (is_array($value)) {
+                $val = '';
+            } else {
+                $val = $value;
+            }
+
+            if ($isIndexed) {
+                $this->writeLine('- '.$val, $depth * 4);
+            } else {
+                $this->writeLine(sprintf('%-20s %s', $key.':', $val), $depth * 4);
+            }
+
+            if (is_array($value)) {
+                $this->writeArray($value, $depth + 1);
+            }
+        }
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/EnumNode.php b/vendor/symfony/config/Symfony/Component/Config/Definition/EnumNode.php
new file mode 100644
index 0000000..224871a
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/EnumNode.php
@@ -0,0 +1,58 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+
+/**
+ * Node which only allows a finite set of values.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class EnumNode extends ScalarNode
+{
+    private $values;
+
+    public function __construct($name, NodeInterface $parent = null, array $values = array())
+    {
+        $values = array_unique($values);
+        if (count($values) <= 1) {
+            throw new \InvalidArgumentException('$values must contain at least two distinct elements.');
+        }
+
+        parent::__construct($name, $parent);
+        $this->values = $values;
+    }
+
+    public function getValues()
+    {
+        return $this->values;
+    }
+
+    protected function finalizeValue($value)
+    {
+        $value = parent::finalizeValue($value);
+
+        if (!in_array($value, $this->values, true)) {
+            $ex = new InvalidConfigurationException(sprintf(
+                'The value %s is not allowed for path "%s". Permissible values: %s',
+                json_encode($value),
+                $this->getPath(),
+                implode(', ', array_map('json_encode', $this->values))));
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+
+        return $value;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/DuplicateKeyException.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/DuplicateKeyException.php
new file mode 100644
index 0000000..48dd932
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/DuplicateKeyException.php
@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * This exception is thrown whenever the key of an array is not unique. This can
+ * only be the case if the configuration is coming from an XML file.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class DuplicateKeyException extends InvalidConfigurationException
+{
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/Exception.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/Exception.php
new file mode 100644
index 0000000..8933a49
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/Exception.php
@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * Base exception for all configuration exceptions.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class Exception extends \RuntimeException
+{
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/ForbiddenOverwriteException.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/ForbiddenOverwriteException.php
new file mode 100644
index 0000000..726c07f
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/ForbiddenOverwriteException.php
@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * This exception is thrown when a configuration path is overwritten from a
+ * subsequent configuration file, but the entry node specifically forbids this.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ForbiddenOverwriteException extends InvalidConfigurationException
+{
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/InvalidConfigurationException.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/InvalidConfigurationException.php
new file mode 100644
index 0000000..3dbc57b
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/InvalidConfigurationException.php
@@ -0,0 +1,49 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * A very general exception which can be thrown whenever non of the more specific
+ * exceptions is suitable.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class InvalidConfigurationException extends Exception
+{
+    private $path;
+    private $containsHints = false;
+
+    public function setPath($path)
+    {
+        $this->path = $path;
+    }
+
+    public function getPath()
+    {
+        return $this->path;
+    }
+
+    /**
+     * Adds extra information that is suffixed to the original exception message.
+     *
+     * @param string $hint
+     */
+    public function addHint($hint)
+    {
+        if (!$this->containsHints) {
+            $this->message .= "\nHint: ".$hint;
+            $this->containsHints = true;
+        } else {
+            $this->message .= ', '.$hint;
+        }
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/InvalidDefinitionException.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/InvalidDefinitionException.php
new file mode 100644
index 0000000..98310da
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/InvalidDefinitionException.php
@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * Thrown when an error is detected in a node Definition.
+ *
+ * @author Victor Berchet <victor.berchet@suumit.com>
+ */
+class InvalidDefinitionException extends Exception
+{
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/InvalidTypeException.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/InvalidTypeException.php
new file mode 100644
index 0000000..d7ca8c9
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/InvalidTypeException.php
@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * This exception is thrown if an invalid type is encountered.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class InvalidTypeException extends InvalidConfigurationException
+{
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/UnsetKeyException.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/UnsetKeyException.php
new file mode 100644
index 0000000..863181a
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Exception/UnsetKeyException.php
@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * This exception is usually not encountered by the end-user, but only used
+ * internally to signal the parent scope to unset a key.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class UnsetKeyException extends Exception
+{
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/FloatNode.php b/vendor/symfony/config/Symfony/Component/Config/Definition/FloatNode.php
new file mode 100644
index 0000000..5e1af17
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/FloatNode.php
@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+
+/**
+ * This node represents a float value in the config tree.
+ *
+ * @author Jeanmonod David <david.jeanmonod@gmail.com>
+ */
+class FloatNode extends NumericNode
+{
+    /**
+     * {@inheritdoc}
+     */
+    protected function validateType($value)
+    {
+        // Integers are also accepted, we just cast them
+        if (is_int($value)) {
+            $value = (float) $value;
+        }
+
+        if (!is_float($value)) {
+            $ex = new InvalidTypeException(sprintf('Invalid type for path "%s". Expected float, but got %s.', $this->getPath(), gettype($value)));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/IntegerNode.php b/vendor/symfony/config/Symfony/Component/Config/Definition/IntegerNode.php
new file mode 100644
index 0000000..ba23070
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/IntegerNode.php
@@ -0,0 +1,38 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+
+/**
+ * This node represents an integer value in the config tree.
+ *
+ * @author Jeanmonod David <david.jeanmonod@gmail.com>
+ */
+class IntegerNode extends NumericNode
+{
+    /**
+     * {@inheritdoc}
+     */
+    protected function validateType($value)
+    {
+        if (!is_int($value)) {
+            $ex = new InvalidTypeException(sprintf('Invalid type for path "%s". Expected int, but got %s.', $this->getPath(), gettype($value)));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/NodeInterface.php b/vendor/symfony/config/Symfony/Component/Config/Definition/NodeInterface.php
new file mode 100644
index 0000000..b9bddc4
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/NodeInterface.php
@@ -0,0 +1,88 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+/**
+ * Common Interface among all nodes.
+ *
+ * In most cases, it is better to inherit from BaseNode instead of implementing
+ * this interface yourself.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+interface NodeInterface
+{
+    /**
+     * Returns the name of the node.
+     *
+     * @return string The name of the node
+     */
+    public function getName();
+
+    /**
+     * Returns the path of the node.
+     *
+     * @return string The node path
+     */
+    public function getPath();
+
+    /**
+     * Returns true when the node is required.
+     *
+     * @return bool If the node is required
+     */
+    public function isRequired();
+
+    /**
+     * Returns true when the node has a default value.
+     *
+     * @return bool If the node has a default value
+     */
+    public function hasDefaultValue();
+
+    /**
+     * Returns the default value of the node.
+     *
+     * @return mixed The default value
+     *
+     * @throws \RuntimeException if the node has no default value
+     */
+    public function getDefaultValue();
+
+    /**
+     * Normalizes the supplied value.
+     *
+     * @param mixed $value The value to normalize
+     *
+     * @return mixed The normalized value
+     */
+    public function normalize($value);
+
+    /**
+     * Merges two values together.
+     *
+     * @param mixed $leftSide
+     * @param mixed $rightSide
+     *
+     * @return mixed The merged values
+     */
+    public function merge($leftSide, $rightSide);
+
+    /**
+     * Finalizes a value.
+     *
+     * @param mixed $value The value to finalize
+     *
+     * @return mixed The finalized value
+     */
+    public function finalize($value);
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/NumericNode.php b/vendor/symfony/config/Symfony/Component/Config/Definition/NumericNode.php
new file mode 100644
index 0000000..2304ad9
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/NumericNode.php
@@ -0,0 +1,55 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+
+/**
+ * This node represents a numeric value in the config tree.
+ *
+ * @author David Jeanmonod <david.jeanmonod@gmail.com>
+ */
+class NumericNode extends ScalarNode
+{
+    protected $min;
+    protected $max;
+
+    public function __construct($name, NodeInterface $parent = null, $min = null, $max = null)
+    {
+        parent::__construct($name, $parent);
+        $this->min = $min;
+        $this->max = $max;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function finalizeValue($value)
+    {
+        $value = parent::finalizeValue($value);
+
+        $errorMsg = null;
+        if (isset($this->min) && $value < $this->min) {
+            $errorMsg = sprintf('The value %s is too small for path "%s". Should be greater than or equal to %s', $value, $this->getPath(), $this->min);
+        }
+        if (isset($this->max) && $value > $this->max) {
+            $errorMsg = sprintf('The value %s is too big for path "%s". Should be less than or equal to %s', $value, $this->getPath(), $this->max);
+        }
+        if (isset($errorMsg)) {
+            $ex = new InvalidConfigurationException($errorMsg);
+            $ex->setPath($this->getPath());
+            throw $ex;
+        }
+
+        return $value;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/Processor.php b/vendor/symfony/config/Symfony/Component/Config/Definition/Processor.php
new file mode 100644
index 0000000..025e693
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/Processor.php
@@ -0,0 +1,97 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+/**
+ * This class is the entry point for config normalization/merging/finalization.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class Processor
+{
+    /**
+     * Processes an array of configurations.
+     *
+     * @param NodeInterface $configTree The node tree describing the configuration
+     * @param array         $configs    An array of configuration items to process
+     *
+     * @return array The processed configuration
+     */
+    public function process(NodeInterface $configTree, array $configs)
+    {
+        $currentConfig = array();
+        foreach ($configs as $config) {
+            $config = $configTree->normalize($config);
+            $currentConfig = $configTree->merge($currentConfig, $config);
+        }
+
+        return $configTree->finalize($currentConfig);
+    }
+
+    /**
+     * Processes an array of configurations.
+     *
+     * @param ConfigurationInterface $configuration The configuration class
+     * @param array                  $configs       An array of configuration items to process
+     *
+     * @return array The processed configuration
+     */
+    public function processConfiguration(ConfigurationInterface $configuration, array $configs)
+    {
+        return $this->process($configuration->getConfigTreeBuilder()->buildTree(), $configs);
+    }
+
+    /**
+     * Normalizes a configuration entry.
+     *
+     * This method returns a normalize configuration array for a given key
+     * to remove the differences due to the original format (YAML and XML mainly).
+     *
+     * Here is an example.
+     *
+     * The configuration in XML:
+     *
+     * <twig:extension>twig.extension.foo</twig:extension>
+     * <twig:extension>twig.extension.bar</twig:extension>
+     *
+     * And the same configuration in YAML:
+     *
+     * extensions: ['twig.extension.foo', 'twig.extension.bar']
+     *
+     * @param array  $config A config array
+     * @param string $key    The key to normalize
+     * @param string $plural The plural form of the key if it is irregular
+     *
+     * @return array
+     */
+    public static function normalizeConfig($config, $key, $plural = null)
+    {
+        if (null === $plural) {
+            $plural = $key.'s';
+        }
+
+        if (isset($config[$plural])) {
+            return $config[$plural];
+        }
+
+        if (isset($config[$key])) {
+            if (is_string($config[$key]) || !is_int(key($config[$key]))) {
+                // only one
+                return  array($config[$key]);
+            }
+
+            return  $config[$key];
+        }
+
+        return array();
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/PrototypeNodeInterface.php b/vendor/symfony/config/Symfony/Component/Config/Definition/PrototypeNodeInterface.php
new file mode 100644
index 0000000..8bbb84d
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/PrototypeNodeInterface.php
@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+/**
+ * This interface must be implemented by nodes which can be used as prototypes.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+interface PrototypeNodeInterface extends NodeInterface
+{
+    /**
+     * Sets the name of the node.
+     *
+     * @param string $name The name of the node
+     */
+    public function setName($name);
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/PrototypedArrayNode.php b/vendor/symfony/config/Symfony/Component/Config/Definition/PrototypedArrayNode.php
new file mode 100644
index 0000000..0a03d36
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/PrototypedArrayNode.php
@@ -0,0 +1,331 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+use Symfony\Component\Config\Definition\Exception\DuplicateKeyException;
+use Symfony\Component\Config\Definition\Exception\UnsetKeyException;
+use Symfony\Component\Config\Definition\Exception\Exception;
+
+/**
+ * Represents a prototyped Array node in the config tree.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class PrototypedArrayNode extends ArrayNode
+{
+    protected $prototype;
+    protected $keyAttribute;
+    protected $removeKeyAttribute = false;
+    protected $minNumberOfElements = 0;
+    protected $defaultValue = array();
+    protected $defaultChildren;
+
+    /**
+     * Sets the minimum number of elements that a prototype based node must
+     * contain. By default this is zero, meaning no elements.
+     *
+     * @param int $number
+     */
+    public function setMinNumberOfElements($number)
+    {
+        $this->minNumberOfElements = $number;
+    }
+
+    /**
+     * Sets the attribute which value is to be used as key.
+     *
+     * This is useful when you have an indexed array that should be an
+     * associative array. You can select an item from within the array
+     * to be the key of the particular item. For example, if "id" is the
+     * "key", then:
+     *
+     *     array(
+     *         array('id' => 'my_name', 'foo' => 'bar'),
+     *     );
+     *
+     *  becomes
+     *
+     *      array(
+     *          'my_name' => array('foo' => 'bar'),
+     *      );
+     *
+     * If you'd like "'id' => 'my_name'" to still be present in the resulting
+     * array, then you can set the second argument of this method to false.
+     *
+     * @param string $attribute The name of the attribute which value is to be used as a key
+     * @param bool   $remove    Whether or not to remove the key
+     */
+    public function setKeyAttribute($attribute, $remove = true)
+    {
+        $this->keyAttribute = $attribute;
+        $this->removeKeyAttribute = $remove;
+    }
+
+    /**
+     * Retrieves the name of the attribute which value should be used as key.
+     *
+     * @return string The name of the attribute
+     */
+    public function getKeyAttribute()
+    {
+        return $this->keyAttribute;
+    }
+
+    /**
+     * Sets the default value of this node.
+     *
+     * @param string $value
+     *
+     * @throws \InvalidArgumentException if the default value is not an array
+     */
+    public function setDefaultValue($value)
+    {
+        if (!is_array($value)) {
+            throw new \InvalidArgumentException($this->getPath().': the default value of an array node has to be an array.');
+        }
+
+        $this->defaultValue = $value;
+    }
+
+    /**
+     * Checks if the node has a default value.
+     *
+     * @return bool
+     */
+    public function hasDefaultValue()
+    {
+        return true;
+    }
+
+    /**
+     * Adds default children when none are set.
+     *
+     * @param int|string|array|null $children The number of children|The child name|The children names to be added
+     */
+    public function setAddChildrenIfNoneSet($children = array('defaults'))
+    {
+        if (null === $children) {
+            $this->defaultChildren = array('defaults');
+        } else {
+            $this->defaultChildren = is_int($children) && $children > 0 ? range(1, $children) : (array) $children;
+        }
+    }
+
+    /**
+     * Retrieves the default value.
+     *
+     * The default value could be either explicited or derived from the prototype
+     * default value.
+     *
+     * @return array The default value
+     */
+    public function getDefaultValue()
+    {
+        if (null !== $this->defaultChildren) {
+            $default = $this->prototype->hasDefaultValue() ? $this->prototype->getDefaultValue() : array();
+            $defaults = array();
+            foreach (array_values($this->defaultChildren) as $i => $name) {
+                $defaults[null === $this->keyAttribute ? $i : $name] = $default;
+            }
+
+            return $defaults;
+        }
+
+        return $this->defaultValue;
+    }
+
+    /**
+     * Sets the node prototype.
+     *
+     * @param PrototypeNodeInterface $node
+     */
+    public function setPrototype(PrototypeNodeInterface $node)
+    {
+        $this->prototype = $node;
+    }
+
+    /**
+     * Retrieves the prototype.
+     *
+     * @return PrototypeNodeInterface The prototype
+     */
+    public function getPrototype()
+    {
+        return $this->prototype;
+    }
+
+    /**
+     * Disable adding concrete children for prototyped nodes.
+     *
+     * @param NodeInterface $node The child node to add
+     *
+     * @throws Exception
+     */
+    public function addChild(NodeInterface $node)
+    {
+        throw new Exception('A prototyped array node can not have concrete children.');
+    }
+
+    /**
+     * Finalizes the value of this node.
+     *
+     * @param mixed $value
+     *
+     * @return mixed The finalized value
+     *
+     * @throws UnsetKeyException
+     * @throws InvalidConfigurationException if the node doesn't have enough children
+     */
+    protected function finalizeValue($value)
+    {
+        if (false === $value) {
+            $msg = sprintf('Unsetting key for path "%s", value: %s', $this->getPath(), json_encode($value));
+            throw new UnsetKeyException($msg);
+        }
+
+        foreach ($value as $k => $v) {
+            $this->prototype->setName($k);
+            try {
+                $value[$k] = $this->prototype->finalize($v);
+            } catch (UnsetKeyException $unset) {
+                unset($value[$k]);
+            }
+        }
+
+        if (count($value) < $this->minNumberOfElements) {
+            $msg = sprintf('The path "%s" should have at least %d element(s) defined.', $this->getPath(), $this->minNumberOfElements);
+            $ex = new InvalidConfigurationException($msg);
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+
+        return $value;
+    }
+
+    /**
+     * Normalizes the value.
+     *
+     * @param mixed $value The value to normalize
+     *
+     * @return mixed The normalized value
+     *
+     * @throws InvalidConfigurationException
+     * @throws DuplicateKeyException
+     */
+    protected function normalizeValue($value)
+    {
+        if (false === $value) {
+            return $value;
+        }
+
+        $value = $this->remapXml($value);
+
+        $isAssoc = array_keys($value) !== range(0, count($value) - 1);
+        $normalized = array();
+        foreach ($value as $k => $v) {
+            if (null !== $this->keyAttribute && is_array($v)) {
+                if (!isset($v[$this->keyAttribute]) && is_int($k) && !$isAssoc) {
+                    $msg = sprintf('The attribute "%s" must be set for path "%s".', $this->keyAttribute, $this->getPath());
+                    $ex = new InvalidConfigurationException($msg);
+                    $ex->setPath($this->getPath());
+
+                    throw $ex;
+                } elseif (isset($v[$this->keyAttribute])) {
+                    $k = $v[$this->keyAttribute];
+
+                    // remove the key attribute when required
+                    if ($this->removeKeyAttribute) {
+                        unset($v[$this->keyAttribute]);
+                    }
+
+                    // if only "value" is left
+                    if (1 == count($v) && isset($v['value'])) {
+                        $v = $v['value'];
+                    }
+                }
+
+                if (array_key_exists($k, $normalized)) {
+                    $msg = sprintf('Duplicate key "%s" for path "%s".', $k, $this->getPath());
+                    $ex = new DuplicateKeyException($msg);
+                    $ex->setPath($this->getPath());
+
+                    throw $ex;
+                }
+            }
+
+            $this->prototype->setName($k);
+            if (null !== $this->keyAttribute || $isAssoc) {
+                $normalized[$k] = $this->prototype->normalize($v);
+            } else {
+                $normalized[] = $this->prototype->normalize($v);
+            }
+        }
+
+        return $normalized;
+    }
+
+    /**
+     * Merges values together.
+     *
+     * @param mixed $leftSide  The left side to merge.
+     * @param mixed $rightSide The right side to merge.
+     *
+     * @return mixed The merged values
+     *
+     * @throws InvalidConfigurationException
+     * @throws \RuntimeException
+     */
+    protected function mergeValues($leftSide, $rightSide)
+    {
+        if (false === $rightSide) {
+            // if this is still false after the last config has been merged the
+            // finalization pass will take care of removing this key entirely
+            return false;
+        }
+
+        if (false === $leftSide || !$this->performDeepMerging) {
+            return $rightSide;
+        }
+
+        foreach ($rightSide as $k => $v) {
+            // prototype, and key is irrelevant, so simply append the element
+            if (null === $this->keyAttribute) {
+                $leftSide[] = $v;
+                continue;
+            }
+
+            // no conflict
+            if (!array_key_exists($k, $leftSide)) {
+                if (!$this->allowNewKeys) {
+                    $ex = new InvalidConfigurationException(sprintf(
+                        'You are not allowed to define new elements for path "%s". '.
+                        'Please define all elements for this path in one config file.',
+                        $this->getPath()
+                    ));
+                    $ex->setPath($this->getPath());
+
+                    throw $ex;
+                }
+
+                $leftSide[$k] = $v;
+                continue;
+            }
+
+            $this->prototype->setName($k);
+            $leftSide[$k] = $this->prototype->merge($leftSide[$k], $v);
+        }
+
+        return $leftSide;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/ReferenceDumper.php b/vendor/symfony/config/Symfony/Component/Config/Definition/ReferenceDumper.php
new file mode 100644
index 0000000..7fe336d
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/ReferenceDumper.php
@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Dumper\YamlReferenceDumper;
+
+/**
+ * @deprecated Deprecated since version 2.4, to be removed in 3.0. Use Symfony\Component\Config\Definition\Dumper\YamlReferenceDumper instead.
+ */
+class ReferenceDumper extends YamlReferenceDumper
+{
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/ScalarNode.php b/vendor/symfony/config/Symfony/Component/Config/Definition/ScalarNode.php
new file mode 100644
index 0000000..854c265
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/ScalarNode.php
@@ -0,0 +1,49 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+
+/**
+ * This node represents a scalar value in the config tree.
+ *
+ * The following values are considered scalars:
+ *   * booleans
+ *   * strings
+ *   * null
+ *   * integers
+ *   * floats
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ScalarNode extends VariableNode
+{
+    /**
+     * {@inheritdoc}
+     */
+    protected function validateType($value)
+    {
+        if (!is_scalar($value) && null !== $value) {
+            $ex = new InvalidTypeException(sprintf(
+                'Invalid type for path "%s". Expected scalar, but got %s.',
+                $this->getPath(),
+                gettype($value)
+            ));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Definition/VariableNode.php b/vendor/symfony/config/Symfony/Component/Config/Definition/VariableNode.php
new file mode 100644
index 0000000..2ab7a45
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Definition/VariableNode.php
@@ -0,0 +1,119 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+
+/**
+ * This node represents a value of variable type in the config tree.
+ *
+ * This node is intended for values of arbitrary type.
+ * Any PHP type is accepted as a value.
+ *
+ * @author Jeremy Mikola <jmikola@gmail.com>
+ */
+class VariableNode extends BaseNode implements PrototypeNodeInterface
+{
+    protected $defaultValueSet = false;
+    protected $defaultValue;
+    protected $allowEmptyValue = true;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setDefaultValue($value)
+    {
+        $this->defaultValueSet = true;
+        $this->defaultValue = $value;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasDefaultValue()
+    {
+        return $this->defaultValueSet;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getDefaultValue()
+    {
+        $v = $this->defaultValue;
+
+        return $v instanceof \Closure ? $v() : $v;
+    }
+
+    /**
+     * Sets if this node is allowed to have an empty value.
+     *
+     * @param bool $boolean True if this entity will accept empty values.
+     */
+    public function setAllowEmptyValue($boolean)
+    {
+        $this->allowEmptyValue = (bool) $boolean;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setName($name)
+    {
+        $this->name = $name;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function validateType($value)
+    {
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function finalizeValue($value)
+    {
+        if (!$this->allowEmptyValue && empty($value)) {
+            $ex = new InvalidConfigurationException(sprintf(
+                'The path "%s" cannot contain an empty value, but got %s.',
+                $this->getPath(),
+                json_encode($value)
+            ));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+
+        return $value;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function normalizeValue($value)
+    {
+        return $value;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function mergeValues($leftSide, $rightSide)
+    {
+        return $rightSide;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Exception/FileLoaderImportCircularReferenceException.php b/vendor/symfony/config/Symfony/Component/Config/Exception/FileLoaderImportCircularReferenceException.php
new file mode 100644
index 0000000..6a3b01c
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Exception/FileLoaderImportCircularReferenceException.php
@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Exception;
+
+/**
+ * Exception class for when a circular reference is detected when importing resources.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class FileLoaderImportCircularReferenceException extends FileLoaderLoadException
+{
+    public function __construct(array $resources, $code = null, $previous = null)
+    {
+        $message = sprintf('Circular reference detected in "%s" ("%s" > "%s").', $this->varToString($resources[0]), implode('" > "', $resources), $resources[0]);
+
+        \Exception::__construct($message, $code, $previous);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Exception/FileLoaderLoadException.php b/vendor/symfony/config/Symfony/Component/Config/Exception/FileLoaderLoadException.php
new file mode 100644
index 0000000..ec825e3
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Exception/FileLoaderLoadException.php
@@ -0,0 +1,100 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Exception;
+
+/**
+ * Exception class for when a resource cannot be loaded or imported.
+ *
+ * @author Ryan Weaver <ryan@thatsquality.com>
+ */
+class FileLoaderLoadException extends \Exception
+{
+    /**
+     * @param string     $resource       The resource that could not be imported
+     * @param string     $sourceResource The original resource importing the new resource
+     * @param int        $code           The error code
+     * @param \Exception $previous       A previous exception
+     */
+    public function __construct($resource, $sourceResource = null, $code = null, $previous = null)
+    {
+        $message = '';
+        if ($previous) {
+            // Include the previous exception, to help the user see what might be the underlying cause
+
+            // Trim the trailing period of the previous message. We only want 1 period remove so no rtrim...
+            if ('.' === substr($previous->getMessage(), -1)) {
+                $trimmedMessage = substr($previous->getMessage(), 0, -1);
+                $message .= sprintf('%s', $trimmedMessage).' in ';
+            } else {
+                $message .= sprintf('%s', $previous->getMessage()).' in ';
+            }
+            $message .= $resource.' ';
+
+            // show tweaked trace to complete the human readable sentence
+            if (null === $sourceResource) {
+                $message .= sprintf('(which is loaded in resource "%s")', $this->varToString($resource));
+            } else {
+                $message .= sprintf('(which is being imported from "%s")', $this->varToString($sourceResource));
+            }
+            $message .= '.';
+
+        // if there's no previous message, present it the default way
+        } elseif (null === $sourceResource) {
+            $message .= sprintf('Cannot load resource "%s".', $this->varToString($resource));
+        } else {
+            $message .= sprintf('Cannot import resource "%s" from "%s".', $this->varToString($resource), $this->varToString($sourceResource));
+        }
+
+        // Is the resource located inside a bundle?
+        if ('@' === $resource[0]) {
+            $parts = explode(DIRECTORY_SEPARATOR, $resource);
+            $bundle = substr($parts[0], 1);
+            $message .= ' '.sprintf('Make sure the "%s" bundle is correctly registered and loaded in the application kernel class.', $bundle);
+        }
+
+        parent::__construct($message, $code, $previous);
+    }
+
+    protected function varToString($var)
+    {
+        if (is_object($var)) {
+            return sprintf('Object(%s)', get_class($var));
+        }
+
+        if (is_array($var)) {
+            $a = array();
+            foreach ($var as $k => $v) {
+                $a[] = sprintf('%s => %s', $k, $this->varToString($v));
+            }
+
+            return sprintf('Array(%s)', implode(', ', $a));
+        }
+
+        if (is_resource($var)) {
+            return sprintf('Resource(%s)', get_resource_type($var));
+        }
+
+        if (null === $var) {
+            return 'null';
+        }
+
+        if (false === $var) {
+            return 'false';
+        }
+
+        if (true === $var) {
+            return 'true';
+        }
+
+        return (string) $var;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/FileLocator.php b/vendor/symfony/config/Symfony/Component/Config/FileLocator.php
new file mode 100644
index 0000000..71bb5ab
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/FileLocator.php
@@ -0,0 +1,95 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+/**
+ * FileLocator uses an array of pre-defined paths to find files.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class FileLocator implements FileLocatorInterface
+{
+    protected $paths;
+
+    /**
+     * Constructor.
+     *
+     * @param string|array $paths A path or an array of paths where to look for resources
+     */
+    public function __construct($paths = array())
+    {
+        $this->paths = (array) $paths;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function locate($name, $currentPath = null, $first = true)
+    {
+        if ('' == $name) {
+            throw new \InvalidArgumentException('An empty file name is not valid to be located.');
+        }
+
+        if ($this->isAbsolutePath($name)) {
+            if (!file_exists($name)) {
+                throw new \InvalidArgumentException(sprintf('The file "%s" does not exist.', $name));
+            }
+
+            return $name;
+        }
+
+        $filepaths = array();
+        if (null !== $currentPath && file_exists($file = $currentPath.DIRECTORY_SEPARATOR.$name)) {
+            if (true === $first) {
+                return $file;
+            }
+            $filepaths[] = $file;
+        }
+
+        foreach ($this->paths as $path) {
+            if (file_exists($file = $path.DIRECTORY_SEPARATOR.$name)) {
+                if (true === $first) {
+                    return $file;
+                }
+                $filepaths[] = $file;
+            }
+        }
+
+        if (!$filepaths) {
+            throw new \InvalidArgumentException(sprintf('The file "%s" does not exist (in: %s%s).', $name, null !== $currentPath ? $currentPath.', ' : '', implode(', ', $this->paths)));
+        }
+
+        return array_values(array_unique($filepaths));
+    }
+
+    /**
+     * Returns whether the file path is an absolute path.
+     *
+     * @param string $file A file path
+     *
+     * @return bool
+     */
+    private function isAbsolutePath($file)
+    {
+        if ($file[0] === '/' || $file[0] === '\\'
+            || (strlen($file) > 3 && ctype_alpha($file[0])
+                && $file[1] === ':'
+                && ($file[2] === '\\' || $file[2] === '/')
+            )
+            || null !== parse_url($file, PHP_URL_SCHEME)
+        ) {
+            return true;
+        }
+
+        return false;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/FileLocatorInterface.php b/vendor/symfony/config/Symfony/Component/Config/FileLocatorInterface.php
new file mode 100644
index 0000000..6605798
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/FileLocatorInterface.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface FileLocatorInterface
+{
+    /**
+     * Returns a full path for a given file name.
+     *
+     * @param string      $name        The file name to locate
+     * @param string|null $currentPath The current path
+     * @param bool        $first       Whether to return the first occurrence or an array of filenames
+     *
+     * @return string|array The full path to the file or an array of file paths
+     *
+     * @throws \InvalidArgumentException When file is not found
+     */
+    public function locate($name, $currentPath = null, $first = true);
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/LICENSE b/vendor/symfony/config/Symfony/Component/Config/LICENSE
new file mode 100644
index 0000000..43028bc
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2004-2015 Fabien Potencier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/symfony/config/Symfony/Component/Config/Loader/DelegatingLoader.php b/vendor/symfony/config/Symfony/Component/Config/Loader/DelegatingLoader.php
new file mode 100644
index 0000000..3097878
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Loader/DelegatingLoader.php
@@ -0,0 +1,55 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+use Symfony\Component\Config\Exception\FileLoaderLoadException;
+
+/**
+ * DelegatingLoader delegates loading to other loaders using a loader resolver.
+ *
+ * This loader acts as an array of LoaderInterface objects - each having
+ * a chance to load a given resource (handled by the resolver)
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class DelegatingLoader extends Loader
+{
+    /**
+     * Constructor.
+     *
+     * @param LoaderResolverInterface $resolver A LoaderResolverInterface instance
+     */
+    public function __construct(LoaderResolverInterface $resolver)
+    {
+        $this->resolver = $resolver;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function load($resource, $type = null)
+    {
+        if (false === $loader = $this->resolver->resolve($resource, $type)) {
+            throw new FileLoaderLoadException($resource);
+        }
+
+        return $loader->load($resource, $type);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supports($resource, $type = null)
+    {
+        return false !== $this->resolver->resolve($resource, $type);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Loader/FileLoader.php b/vendor/symfony/config/Symfony/Component/Config/Loader/FileLoader.php
new file mode 100644
index 0000000..21e4c47
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Loader/FileLoader.php
@@ -0,0 +1,124 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+use Symfony\Component\Config\FileLocatorInterface;
+use Symfony\Component\Config\Exception\FileLoaderLoadException;
+use Symfony\Component\Config\Exception\FileLoaderImportCircularReferenceException;
+
+/**
+ * FileLoader is the abstract class used by all built-in loaders that are file based.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+abstract class FileLoader extends Loader
+{
+    /**
+     * @var array
+     */
+    protected static $loading = array();
+
+    /**
+     * @var FileLocatorInterface
+     */
+    protected $locator;
+
+    private $currentDir;
+
+    /**
+     * Constructor.
+     *
+     * @param FileLocatorInterface $locator A FileLocatorInterface instance
+     */
+    public function __construct(FileLocatorInterface $locator)
+    {
+        $this->locator = $locator;
+    }
+
+    /**
+     * Sets the current directory.
+     *
+     * @param string $dir
+     */
+    public function setCurrentDir($dir)
+    {
+        $this->currentDir = $dir;
+    }
+
+    /**
+     * Returns the file locator used by this loader.
+     *
+     * @return FileLocatorInterface
+     */
+    public function getLocator()
+    {
+        return $this->locator;
+    }
+
+    /**
+     * Imports a resource.
+     *
+     * @param mixed       $resource       A Resource
+     * @param string|null $type           The resource type or null if unknown
+     * @param bool        $ignoreErrors   Whether to ignore import errors or not
+     * @param string|null $sourceResource The original resource importing the new resource
+     *
+     * @return mixed
+     *
+     * @throws FileLoaderLoadException
+     * @throws FileLoaderImportCircularReferenceException
+     */
+    public function import($resource, $type = null, $ignoreErrors = false, $sourceResource = null)
+    {
+        try {
+            $loader = $this->resolve($resource, $type);
+
+            if ($loader instanceof FileLoader && null !== $this->currentDir) {
+                // we fallback to the current locator to keep BC
+                // as some some loaders do not call the parent __construct()
+                // @deprecated should be removed in 3.0
+                $locator = $loader->getLocator() ?: $this->locator;
+                $resource = $locator->locate($resource, $this->currentDir, false);
+            }
+
+            $resources = is_array($resource) ? $resource : array($resource);
+            for ($i = 0; $i < $resourcesCount = count($resources); $i++) {
+                if (isset(self::$loading[$resources[$i]])) {
+                    if ($i == $resourcesCount - 1) {
+                        throw new FileLoaderImportCircularReferenceException(array_keys(self::$loading));
+                    }
+                } else {
+                    $resource = $resources[$i];
+                    break;
+                }
+            }
+            self::$loading[$resource] = true;
+
+            $ret = $loader->load($resource, $type);
+
+            unset(self::$loading[$resource]);
+
+            return $ret;
+        } catch (FileLoaderImportCircularReferenceException $e) {
+            throw $e;
+        } catch (\Exception $e) {
+            if (!$ignoreErrors) {
+                // prevent embedded imports from nesting multiple exceptions
+                if ($e instanceof FileLoaderLoadException) {
+                    throw $e;
+                }
+
+                throw new FileLoaderLoadException($resource, $sourceResource, null, $e);
+            }
+        }
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Loader/Loader.php b/vendor/symfony/config/Symfony/Component/Config/Loader/Loader.php
new file mode 100644
index 0000000..de4e127
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Loader/Loader.php
@@ -0,0 +1,78 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+use Symfony\Component\Config\Exception\FileLoaderLoadException;
+
+/**
+ * Loader is the abstract class used by all built-in loaders.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+abstract class Loader implements LoaderInterface
+{
+    protected $resolver;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getResolver()
+    {
+        return $this->resolver;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setResolver(LoaderResolverInterface $resolver)
+    {
+        $this->resolver = $resolver;
+    }
+
+    /**
+     * Imports a resource.
+     *
+     * @param mixed       $resource A resource
+     * @param string|null $type     The resource type or null if unknown
+     *
+     * @return mixed
+     */
+    public function import($resource, $type = null)
+    {
+        return $this->resolve($resource, $type)->load($resource, $type);
+    }
+
+    /**
+     * Finds a loader able to load an imported resource.
+     *
+     * @param mixed       $resource A resource
+     * @param string|null $type     The resource type or null if unknown
+     *
+     * @return LoaderInterface A LoaderInterface instance
+     *
+     * @throws FileLoaderLoadException If no loader is found
+     */
+    public function resolve($resource, $type = null)
+    {
+        if ($this->supports($resource, $type)) {
+            return $this;
+        }
+
+        $loader = null === $this->resolver ? false : $this->resolver->resolve($resource, $type);
+
+        if (false === $loader) {
+            throw new FileLoaderLoadException($resource);
+        }
+
+        return $loader;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Loader/LoaderInterface.php b/vendor/symfony/config/Symfony/Component/Config/Loader/LoaderInterface.php
new file mode 100644
index 0000000..dd0a85a
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Loader/LoaderInterface.php
@@ -0,0 +1,54 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+/**
+ * LoaderInterface is the interface implemented by all loader classes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface LoaderInterface
+{
+    /**
+     * Loads a resource.
+     *
+     * @param mixed       $resource The resource
+     * @param string|null $type     The resource type or null if unknown
+     *
+     * @throws \Exception If something went wrong
+     */
+    public function load($resource, $type = null);
+
+    /**
+     * Returns whether this class supports the given resource.
+     *
+     * @param mixed       $resource A resource
+     * @param string|null $type     The resource type or null if unknown
+     *
+     * @return bool True if this class supports the given resource, false otherwise
+     */
+    public function supports($resource, $type = null);
+
+    /**
+     * Gets the loader resolver.
+     *
+     * @return LoaderResolverInterface A LoaderResolverInterface instance
+     */
+    public function getResolver();
+
+    /**
+     * Sets the loader resolver.
+     *
+     * @param LoaderResolverInterface $resolver A LoaderResolverInterface instance
+     */
+    public function setResolver(LoaderResolverInterface $resolver);
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Loader/LoaderResolver.php b/vendor/symfony/config/Symfony/Component/Config/Loader/LoaderResolver.php
new file mode 100644
index 0000000..dc6846d
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Loader/LoaderResolver.php
@@ -0,0 +1,75 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+/**
+ * LoaderResolver selects a loader for a given resource.
+ *
+ * A resource can be anything (e.g. a full path to a config file or a Closure).
+ * Each loader determines whether it can load a resource and how.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class LoaderResolver implements LoaderResolverInterface
+{
+    /**
+     * @var LoaderInterface[] An array of LoaderInterface objects
+     */
+    private $loaders = array();
+
+    /**
+     * Constructor.
+     *
+     * @param LoaderInterface[] $loaders An array of loaders
+     */
+    public function __construct(array $loaders = array())
+    {
+        foreach ($loaders as $loader) {
+            $this->addLoader($loader);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function resolve($resource, $type = null)
+    {
+        foreach ($this->loaders as $loader) {
+            if ($loader->supports($resource, $type)) {
+                return $loader;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Adds a loader.
+     *
+     * @param LoaderInterface $loader A LoaderInterface instance
+     */
+    public function addLoader(LoaderInterface $loader)
+    {
+        $this->loaders[] = $loader;
+        $loader->setResolver($this);
+    }
+
+    /**
+     * Returns the registered loaders.
+     *
+     * @return LoaderInterface[] An array of LoaderInterface instances
+     */
+    public function getLoaders()
+    {
+        return $this->loaders;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Loader/LoaderResolverInterface.php b/vendor/symfony/config/Symfony/Component/Config/Loader/LoaderResolverInterface.php
new file mode 100644
index 0000000..40f1a1a
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Loader/LoaderResolverInterface.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+/**
+ * LoaderResolverInterface selects a loader for a given resource.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface LoaderResolverInterface
+{
+    /**
+     * Returns a loader able to load the resource.
+     *
+     * @param mixed       $resource A resource
+     * @param string|null $type     The resource type or null if unknown
+     *
+     * @return LoaderInterface|false The loader or false if none is able to load the resource
+     */
+    public function resolve($resource, $type = null);
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/README.md b/vendor/symfony/config/Symfony/Component/Config/README.md
new file mode 100644
index 0000000..690d7d7
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/README.md
@@ -0,0 +1,17 @@
+Config Component
+================
+
+Config provides the infrastructure for loading configurations from different
+data sources and optionally monitoring these data sources for changes. There
+are additional tools for validating, normalizing and handling of defaults that
+can optionally be used to convert from different formats to arrays.
+
+Resources
+---------
+
+You can run the unit tests with the following command:
+
+    $ cd path/to/Symfony/Component/Config/
+    $ composer install
+    $ phpunit
+
diff --git a/vendor/symfony/config/Symfony/Component/Config/Resource/DirectoryResource.php b/vendor/symfony/config/Symfony/Component/Config/Resource/DirectoryResource.php
new file mode 100644
index 0000000..515fb5c
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Resource/DirectoryResource.php
@@ -0,0 +1,99 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Resource;
+
+/**
+ * DirectoryResource represents a resources stored in a subdirectory tree.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class DirectoryResource implements ResourceInterface, \Serializable
+{
+    private $resource;
+    private $pattern;
+
+    /**
+     * Constructor.
+     *
+     * @param string      $resource The file path to the resource
+     * @param string|null $pattern  A pattern to restrict monitored files
+     */
+    public function __construct($resource, $pattern = null)
+    {
+        $this->resource = $resource;
+        $this->pattern = $pattern;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __toString()
+    {
+        return (string) $this->resource;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getResource()
+    {
+        return $this->resource;
+    }
+
+    /**
+     * Returns the pattern to restrict monitored files.
+     *
+     * @return string|null
+     */
+    public function getPattern()
+    {
+        return $this->pattern;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isFresh($timestamp)
+    {
+        if (!is_dir($this->resource)) {
+            return false;
+        }
+
+        $newestMTime = filemtime($this->resource);
+        foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->resource), \RecursiveIteratorIterator::SELF_FIRST) as $file) {
+            // if regex filtering is enabled only check matching files
+            if ($this->pattern && $file->isFile() && !preg_match($this->pattern, $file->getBasename())) {
+                continue;
+            }
+
+            // always monitor directories for changes, except the .. entries
+            // (otherwise deleted files wouldn't get detected)
+            if ($file->isDir() && '/..' === substr($file, -3)) {
+                continue;
+            }
+
+            $newestMTime = max($file->getMTime(), $newestMTime);
+        }
+
+        return $newestMTime < $timestamp;
+    }
+
+    public function serialize()
+    {
+        return serialize(array($this->resource, $this->pattern));
+    }
+
+    public function unserialize($serialized)
+    {
+        list($this->resource, $this->pattern) = unserialize($serialized);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Resource/FileResource.php b/vendor/symfony/config/Symfony/Component/Config/Resource/FileResource.php
new file mode 100644
index 0000000..4c00ae4
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Resource/FileResource.php
@@ -0,0 +1,75 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Resource;
+
+/**
+ * FileResource represents a resource stored on the filesystem.
+ *
+ * The resource can be a file or a directory.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class FileResource implements ResourceInterface, \Serializable
+{
+    /**
+     * @var string|false
+     */
+    private $resource;
+
+    /**
+     * Constructor.
+     *
+     * @param string $resource The file path to the resource
+     */
+    public function __construct($resource)
+    {
+        $this->resource = realpath($resource);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __toString()
+    {
+        return (string) $this->resource;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getResource()
+    {
+        return $this->resource;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isFresh($timestamp)
+    {
+        if (false === $this->resource || !file_exists($this->resource)) {
+            return false;
+        }
+
+        return filemtime($this->resource) <= $timestamp;
+    }
+
+    public function serialize()
+    {
+        return serialize($this->resource);
+    }
+
+    public function unserialize($serialized)
+    {
+        $this->resource = unserialize($serialized);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Resource/ResourceInterface.php b/vendor/symfony/config/Symfony/Component/Config/Resource/ResourceInterface.php
new file mode 100644
index 0000000..db03d12
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Resource/ResourceInterface.php
@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Resource;
+
+/**
+ * ResourceInterface is the interface that must be implemented by all Resource classes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface ResourceInterface
+{
+    /**
+     * Returns a string representation of the Resource.
+     *
+     * @return string A string representation of the Resource
+     */
+    public function __toString();
+
+    /**
+     * Returns true if the resource has not been updated since the given timestamp.
+     *
+     * @param int $timestamp The last time the resource was loaded
+     *
+     * @return bool True if the resource has not been updated, false otherwise
+     */
+    public function isFresh($timestamp);
+
+    /**
+     * Returns the tied resource.
+     *
+     * @return mixed The resource
+     */
+    public function getResource();
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/ConfigCacheTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/ConfigCacheTest.php
new file mode 100644
index 0000000..8271885
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/ConfigCacheTest.php
@@ -0,0 +1,138 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests;
+
+use Symfony\Component\Config\ConfigCache;
+use Symfony\Component\Config\Resource\FileResource;
+
+class ConfigCacheTest extends \PHPUnit_Framework_TestCase
+{
+    private $resourceFile = null;
+
+    private $cacheFile = null;
+
+    private $metaFile = null;
+
+    protected function setUp()
+    {
+        $this->resourceFile = tempnam(sys_get_temp_dir(), '_resource');
+        $this->cacheFile = tempnam(sys_get_temp_dir(), 'config_');
+        $this->metaFile = $this->cacheFile.'.meta';
+
+        $this->makeCacheFresh();
+        $this->generateMetaFile();
+    }
+
+    protected function tearDown()
+    {
+        $files = array($this->cacheFile, $this->metaFile, $this->resourceFile);
+
+        foreach ($files as $file) {
+            if (file_exists($file)) {
+                unlink($file);
+            }
+        }
+    }
+
+    public function testToString()
+    {
+        $cache = new ConfigCache($this->cacheFile, true);
+
+        $this->assertSame($this->cacheFile, (string) $cache);
+    }
+
+    public function testCacheIsNotFreshIfFileDoesNotExist()
+    {
+        unlink($this->cacheFile);
+
+        $cache = new ConfigCache($this->cacheFile, false);
+
+        $this->assertFalse($cache->isFresh());
+    }
+
+    public function testCacheIsAlwaysFreshIfFileExistsWithDebugDisabled()
+    {
+        $this->makeCacheStale();
+
+        $cache = new ConfigCache($this->cacheFile, false);
+
+        $this->assertTrue($cache->isFresh());
+    }
+
+    public function testCacheIsNotFreshWithoutMetaFile()
+    {
+        unlink($this->metaFile);
+
+        $cache = new ConfigCache($this->cacheFile, true);
+
+        $this->assertFalse($cache->isFresh());
+    }
+
+    public function testCacheIsFreshIfResourceIsFresh()
+    {
+        $cache = new ConfigCache($this->cacheFile, true);
+
+        $this->assertTrue($cache->isFresh());
+    }
+
+    public function testCacheIsNotFreshIfOneOfTheResourcesIsNotFresh()
+    {
+        $this->makeCacheStale();
+
+        $cache = new ConfigCache($this->cacheFile, true);
+
+        $this->assertFalse($cache->isFresh());
+    }
+
+    public function testWriteDumpsFile()
+    {
+        unlink($this->cacheFile);
+        unlink($this->metaFile);
+
+        $cache = new ConfigCache($this->cacheFile, false);
+        $cache->write('FOOBAR');
+
+        $this->assertFileExists($this->cacheFile, 'Cache file is created');
+        $this->assertSame('FOOBAR', file_get_contents($this->cacheFile));
+        $this->assertFileNotExists($this->metaFile, 'Meta file is not created');
+    }
+
+    public function testWriteDumpsMetaFileWithDebugEnabled()
+    {
+        unlink($this->cacheFile);
+        unlink($this->metaFile);
+
+        $metadata = array(new FileResource($this->resourceFile));
+
+        $cache = new ConfigCache($this->cacheFile, true);
+        $cache->write('FOOBAR', $metadata);
+
+        $this->assertFileExists($this->cacheFile, 'Cache file is created');
+        $this->assertFileExists($this->metaFile, 'Meta file is created');
+        $this->assertSame(serialize($metadata), file_get_contents($this->metaFile));
+    }
+
+    private function makeCacheFresh()
+    {
+        touch($this->resourceFile, filemtime($this->cacheFile) - 3600);
+    }
+
+    private function makeCacheStale()
+    {
+        touch($this->cacheFile, filemtime($this->resourceFile) - 3600);
+    }
+
+    private function generateMetaFile()
+    {
+        file_put_contents($this->metaFile, serialize(array(new FileResource($this->resourceFile))));
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/ArrayNodeTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/ArrayNodeTest.php
new file mode 100644
index 0000000..291c2fd
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/ArrayNodeTest.php
@@ -0,0 +1,160 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition;
+
+use Symfony\Component\Config\Definition\ArrayNode;
+use Symfony\Component\Config\Definition\ScalarNode;
+
+class ArrayNodeTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidTypeException
+     */
+    public function testNormalizeThrowsExceptionWhenFalseIsNotAllowed()
+    {
+        $node = new ArrayNode('root');
+        $node->normalize(false);
+    }
+
+    /**
+     * @expectedException        \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
+     * @expectedExceptionMessage Unrecognized option "foo" under "root"
+     */
+    public function testExceptionThrownOnUnrecognizedChild()
+    {
+        $node = new ArrayNode('root');
+        $node->normalize(array('foo' => 'bar'));
+    }
+
+    /**
+     * Tests that no exception is thrown for an unrecognized child if the
+     * ignoreExtraKeys option is set to true.
+     *
+     * Related to testExceptionThrownOnUnrecognizedChild
+     */
+    public function testIgnoreExtraKeysNoException()
+    {
+        $node = new ArrayNode('roo');
+        $node->setIgnoreExtraKeys(true);
+
+        $node->normalize(array('foo' => 'bar'));
+        $this->assertTrue(true, 'No exception was thrown when setIgnoreExtraKeys is true');
+    }
+
+    /**
+     * @dataProvider getPreNormalizationTests
+     */
+    public function testPreNormalize($denormalized, $normalized)
+    {
+        $node = new ArrayNode('foo');
+
+        $r = new \ReflectionMethod($node, 'preNormalize');
+        $r->setAccessible(true);
+
+        $this->assertSame($normalized, $r->invoke($node, $denormalized));
+    }
+
+    public function getPreNormalizationTests()
+    {
+        return array(
+            array(
+                array('foo-bar' => 'foo'),
+                array('foo_bar' => 'foo'),
+            ),
+            array(
+                array('foo-bar_moo' => 'foo'),
+                array('foo-bar_moo' => 'foo'),
+            ),
+            array(
+                array('foo-bar' => null, 'foo_bar' => 'foo'),
+                array('foo-bar' => null, 'foo_bar' => 'foo'),
+            ),
+        );
+    }
+
+    /**
+     * @dataProvider getZeroNamedNodeExamplesData
+     */
+    public function testNodeNameCanBeZero($denormalized, $normalized)
+    {
+        $zeroNode = new ArrayNode(0);
+        $zeroNode->addChild(new ScalarNode('name'));
+        $fiveNode = new ArrayNode(5);
+        $fiveNode->addChild(new ScalarNode(0));
+        $fiveNode->addChild(new ScalarNode('new_key'));
+        $rootNode = new ArrayNode('root');
+        $rootNode->addChild($zeroNode);
+        $rootNode->addChild($fiveNode);
+        $rootNode->addChild(new ScalarNode('string_key'));
+        $r = new \ReflectionMethod($rootNode, 'normalizeValue');
+        $r->setAccessible(true);
+
+        $this->assertSame($normalized, $r->invoke($rootNode, $denormalized));
+    }
+
+    public function getZeroNamedNodeExamplesData()
+    {
+        return array(
+            array(
+                array(
+                    0 => array(
+                        'name' => 'something',
+                    ),
+                    5 => array(
+                        0 => 'this won\'t work too',
+                        'new_key' => 'some other value',
+                    ),
+                    'string_key' => 'just value',
+                ),
+                array(
+                    0 => array(
+                        'name' => 'something',
+                    ),
+                    5 => array(
+                        0 => 'this won\'t work too',
+                        'new_key' => 'some other value',
+                    ),
+                    'string_key' => 'just value',
+                ),
+            ),
+        );
+    }
+
+    /**
+     * @dataProvider getPreNormalizedNormalizedOrderedData
+     */
+    public function testChildrenOrderIsMaintainedOnNormalizeValue($prenormalized, $normalized)
+    {
+        $scalar1 = new ScalarNode('1');
+        $scalar2 = new ScalarNode('2');
+        $scalar3 = new ScalarNode('3');
+        $node = new ArrayNode('foo');
+        $node->addChild($scalar1);
+        $node->addChild($scalar3);
+        $node->addChild($scalar2);
+
+        $r = new \ReflectionMethod($node, 'normalizeValue');
+        $r->setAccessible(true);
+
+        $this->assertSame($normalized, $r->invoke($node, $prenormalized));
+    }
+
+    public function getPreNormalizedNormalizedOrderedData()
+    {
+        return array(
+            array(
+                array('2' => 'two', '1' => 'one', '3' => 'three'),
+                array('2' => 'two', '1' => 'one', '3' => 'three'),
+            ),
+        );
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/BooleanNodeTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/BooleanNodeTest.php
new file mode 100644
index 0000000..0753d64
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/BooleanNodeTest.php
@@ -0,0 +1,60 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition;
+
+use Symfony\Component\Config\Definition\BooleanNode;
+
+class BooleanNodeTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @dataProvider getValidValues
+     */
+    public function testNormalize($value)
+    {
+        $node = new BooleanNode('test');
+        $this->assertSame($value, $node->normalize($value));
+    }
+
+    public function getValidValues()
+    {
+        return array(
+            array(false),
+            array(true),
+        );
+    }
+
+    /**
+     * @dataProvider getInvalidValues
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidTypeException
+     */
+    public function testNormalizeThrowsExceptionOnInvalidValues($value)
+    {
+        $node = new BooleanNode('test');
+        $node->normalize($value);
+    }
+
+    public function getInvalidValues()
+    {
+        return array(
+            array(null),
+            array(''),
+            array('foo'),
+            array(0),
+            array(1),
+            array(0.0),
+            array(0.1),
+            array(array()),
+            array(array('foo' => 'bar')),
+            array(new \stdClass()),
+        );
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/ArrayNodeDefinitionTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/ArrayNodeDefinitionTest.php
new file mode 100644
index 0000000..e75ed34
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/ArrayNodeDefinitionTest.php
@@ -0,0 +1,207 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition\Builder;
+
+use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
+use Symfony\Component\Config\Definition\Processor;
+use Symfony\Component\Config\Definition\Builder\ScalarNodeDefinition;
+use Symfony\Component\Config\Definition\Exception\InvalidDefinitionException;
+
+class ArrayNodeDefinitionTest extends \PHPUnit_Framework_TestCase
+{
+    public function testAppendingSomeNode()
+    {
+        $parent = new ArrayNodeDefinition('root');
+        $child = new ScalarNodeDefinition('child');
+
+        $parent
+            ->children()
+                ->scalarNode('foo')->end()
+                ->scalarNode('bar')->end()
+            ->end()
+            ->append($child);
+
+        $this->assertCount(3, $this->getField($parent, 'children'));
+        $this->assertTrue(in_array($child, $this->getField($parent, 'children')));
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidDefinitionException
+     * @dataProvider providePrototypeNodeSpecificCalls
+     */
+    public function testPrototypeNodeSpecificOption($method, $args)
+    {
+        $node = new ArrayNodeDefinition('root');
+
+        call_user_func_array(array($node, $method), $args);
+
+        $node->getNode();
+    }
+
+    public function providePrototypeNodeSpecificCalls()
+    {
+        return array(
+            array('defaultValue', array(array())),
+            array('addDefaultChildrenIfNoneSet', array()),
+            array('requiresAtLeastOneElement', array()),
+            array('useAttributeAsKey', array('foo')),
+        );
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidDefinitionException
+     */
+    public function testConcreteNodeSpecificOption()
+    {
+        $node = new ArrayNodeDefinition('root');
+        $node
+            ->addDefaultsIfNotSet()
+            ->prototype('array')
+        ;
+        $node->getNode();
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidDefinitionException
+     */
+    public function testPrototypeNodesCantHaveADefaultValueWhenUsingDefaultChildren()
+    {
+        $node = new ArrayNodeDefinition('root');
+        $node
+            ->defaultValue(array())
+            ->addDefaultChildrenIfNoneSet('foo')
+            ->prototype('array')
+        ;
+        $node->getNode();
+    }
+
+    public function testPrototypedArrayNodeDefaultWhenUsingDefaultChildren()
+    {
+        $node = new ArrayNodeDefinition('root');
+        $node
+            ->addDefaultChildrenIfNoneSet()
+            ->prototype('array')
+        ;
+        $tree = $node->getNode();
+        $this->assertEquals(array(array()), $tree->getDefaultValue());
+    }
+
+    /**
+     * @dataProvider providePrototypedArrayNodeDefaults
+     */
+    public function testPrototypedArrayNodeDefault($args, $shouldThrowWhenUsingAttrAsKey, $shouldThrowWhenNotUsingAttrAsKey, $defaults)
+    {
+        $node = new ArrayNodeDefinition('root');
+        $node
+            ->addDefaultChildrenIfNoneSet($args)
+            ->prototype('array')
+        ;
+
+        try {
+            $tree = $node->getNode();
+            $this->assertFalse($shouldThrowWhenNotUsingAttrAsKey);
+            $this->assertEquals($defaults, $tree->getDefaultValue());
+        } catch (InvalidDefinitionException $e) {
+            $this->assertTrue($shouldThrowWhenNotUsingAttrAsKey);
+        }
+
+        $node = new ArrayNodeDefinition('root');
+        $node
+            ->useAttributeAsKey('attr')
+            ->addDefaultChildrenIfNoneSet($args)
+            ->prototype('array')
+        ;
+
+        try {
+            $tree = $node->getNode();
+            $this->assertFalse($shouldThrowWhenUsingAttrAsKey);
+            $this->assertEquals($defaults, $tree->getDefaultValue());
+        } catch (InvalidDefinitionException $e) {
+            $this->assertTrue($shouldThrowWhenUsingAttrAsKey);
+        }
+    }
+
+    public function providePrototypedArrayNodeDefaults()
+    {
+        return array(
+            array(null, true, false, array(array())),
+            array(2, true, false, array(array(), array())),
+            array('2', false, true, array('2' => array())),
+            array('foo', false, true, array('foo' => array())),
+            array(array('foo'), false, true, array('foo' => array())),
+            array(array('foo', 'bar'), false, true, array('foo' => array(), 'bar' => array())),
+        );
+    }
+
+    public function testNestedPrototypedArrayNodes()
+    {
+        $node = new ArrayNodeDefinition('root');
+        $node
+            ->addDefaultChildrenIfNoneSet()
+            ->prototype('array')
+                  ->prototype('array')
+        ;
+        $node->getNode();
+    }
+
+    public function testEnabledNodeDefaults()
+    {
+        $node = new ArrayNodeDefinition('root');
+        $node
+            ->canBeEnabled()
+            ->children()
+                ->scalarNode('foo')->defaultValue('bar')->end()
+        ;
+
+        $this->assertEquals(array('enabled' => false, 'foo' => 'bar'), $node->getNode()->getDefaultValue());
+    }
+
+    /**
+     * @dataProvider getEnableableNodeFixtures
+     */
+    public function testTrueEnableEnabledNode($expected, $config, $message)
+    {
+        $processor = new Processor();
+        $node = new ArrayNodeDefinition('root');
+        $node
+            ->canBeEnabled()
+            ->children()
+                ->scalarNode('foo')->defaultValue('bar')->end()
+        ;
+
+        $this->assertEquals(
+            $expected,
+            $processor->process($node->getNode(), $config),
+            $message
+        );
+    }
+
+    public function getEnableableNodeFixtures()
+    {
+        return array(
+            array(array('enabled' => true, 'foo' => 'bar'), array(true), 'true enables an enableable node'),
+            array(array('enabled' => true, 'foo' => 'bar'), array(null), 'null enables an enableable node'),
+            array(array('enabled' => true, 'foo' => 'bar'), array(array('enabled' => true)), 'An enableable node can be enabled'),
+            array(array('enabled' => true, 'foo' => 'baz'), array(array('foo' => 'baz')), 'any configuration enables an enableable node'),
+            array(array('enabled' => false, 'foo' => 'baz'), array(array('foo' => 'baz', 'enabled' => false)), 'An enableable node can be disabled'),
+            array(array('enabled' => false, 'foo' => 'bar'), array(false), 'false disables an enableable node'),
+        );
+    }
+
+    protected function getField($object, $field)
+    {
+        $reflection = new \ReflectionProperty($object, $field);
+        $reflection->setAccessible(true);
+
+        return $reflection->getValue($object);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/EnumNodeDefinitionTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/EnumNodeDefinitionTest.php
new file mode 100644
index 0000000..69f7fcf
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/EnumNodeDefinitionTest.php
@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition\Builder;
+
+use Symfony\Component\Config\Definition\Builder\EnumNodeDefinition;
+
+class EnumNodeDefinitionTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @expectedException \InvalidArgumentException
+     * @expectedExceptionMessage ->values() must be called with at least two distinct values.
+     */
+    public function testNoDistinctValues()
+    {
+        $def = new EnumNodeDefinition('foo');
+        $def->values(array('foo', 'foo'));
+    }
+
+    /**
+     * @expectedException \RuntimeException
+     * @expectedExceptionMessage You must call ->values() on enum nodes.
+     */
+    public function testNoValuesPassed()
+    {
+        $def = new EnumNodeDefinition('foo');
+        $def->getNode();
+    }
+
+    public function testGetNode()
+    {
+        $def = new EnumNodeDefinition('foo');
+        $def->values(array('foo', 'bar'));
+
+        $node = $def->getNode();
+        $this->assertEquals(array('foo', 'bar'), $node->getValues());
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/ExprBuilderTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/ExprBuilderTest.php
new file mode 100644
index 0000000..147bf13
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/ExprBuilderTest.php
@@ -0,0 +1,215 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition\Builder;
+
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+
+class ExprBuilderTest extends \PHPUnit_Framework_TestCase
+{
+    public function testAlwaysExpression()
+    {
+        $test = $this->getTestBuilder()
+            ->always($this->returnClosure('new_value'))
+        ->end();
+
+        $this->assertFinalizedValueIs('new_value', $test);
+    }
+
+    public function testIfTrueExpression()
+    {
+        $test = $this->getTestBuilder()
+            ->ifTrue()
+            ->then($this->returnClosure('new_value'))
+        ->end();
+        $this->assertFinalizedValueIs('new_value', $test, array('key' => true));
+
+        $test = $this->getTestBuilder()
+            ->ifTrue(function ($v) { return true; })
+            ->then($this->returnClosure('new_value'))
+        ->end();
+        $this->assertFinalizedValueIs('new_value', $test);
+
+        $test = $this->getTestBuilder()
+            ->ifTrue(function ($v) { return false; })
+            ->then($this->returnClosure('new_value'))
+        ->end();
+        $this->assertFinalizedValueIs('value', $test);
+    }
+
+    public function testIfStringExpression()
+    {
+        $test = $this->getTestBuilder()
+            ->ifString()
+            ->then($this->returnClosure('new_value'))
+        ->end();
+        $this->assertFinalizedValueIs('new_value', $test);
+
+        $test = $this->getTestBuilder()
+            ->ifString()
+            ->then($this->returnClosure('new_value'))
+        ->end();
+        $this->assertFinalizedValueIs(45, $test, array('key' => 45));
+    }
+
+    public function testIfNullExpression()
+    {
+        $test = $this->getTestBuilder()
+            ->ifNull()
+            ->then($this->returnClosure('new_value'))
+        ->end();
+        $this->assertFinalizedValueIs('new_value', $test, array('key' => null));
+
+        $test = $this->getTestBuilder()
+            ->ifNull()
+            ->then($this->returnClosure('new_value'))
+        ->end();
+        $this->assertFinalizedValueIs('value', $test);
+    }
+
+    public function testIfArrayExpression()
+    {
+        $test = $this->getTestBuilder()
+            ->ifArray()
+            ->then($this->returnClosure('new_value'))
+        ->end();
+        $this->assertFinalizedValueIs('new_value', $test, array('key' => array()));
+
+        $test = $this->getTestBuilder()
+            ->ifArray()
+            ->then($this->returnClosure('new_value'))
+        ->end();
+        $this->assertFinalizedValueIs('value', $test);
+    }
+
+    public function testIfInArrayExpression()
+    {
+        $test = $this->getTestBuilder()
+            ->ifInArray(array('foo', 'bar', 'value'))
+            ->then($this->returnClosure('new_value'))
+        ->end();
+        $this->assertFinalizedValueIs('new_value', $test);
+
+        $test = $this->getTestBuilder()
+            ->ifInArray(array('foo', 'bar'))
+            ->then($this->returnClosure('new_value'))
+        ->end();
+        $this->assertFinalizedValueIs('value', $test);
+    }
+
+    public function testIfNotInArrayExpression()
+    {
+        $test = $this->getTestBuilder()
+            ->ifNotInArray(array('foo', 'bar'))
+            ->then($this->returnClosure('new_value'))
+        ->end();
+        $this->assertFinalizedValueIs('new_value', $test);
+
+        $test = $this->getTestBuilder()
+            ->ifNotInArray(array('foo', 'bar', 'value_from_config'))
+            ->then($this->returnClosure('new_value'))
+        ->end();
+        $this->assertFinalizedValueIs('new_value', $test);
+    }
+
+    public function testThenEmptyArrayExpression()
+    {
+        $test = $this->getTestBuilder()
+            ->ifString()
+            ->thenEmptyArray()
+        ->end();
+        $this->assertFinalizedValueIs(array(), $test);
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
+     */
+    public function testThenInvalid()
+    {
+        $test = $this->getTestBuilder()
+            ->ifString()
+            ->thenInvalid('Invalid value')
+        ->end();
+        $this->finalizeTestBuilder($test);
+    }
+
+    public function testThenUnsetExpression()
+    {
+        $test = $this->getTestBuilder()
+            ->ifString()
+            ->thenUnset()
+        ->end();
+        $this->assertEquals(array(), $this->finalizeTestBuilder($test));
+    }
+
+    /**
+     * Create a test treebuilder with a variable node, and init the validation.
+     *
+     * @return TreeBuilder
+     */
+    protected function getTestBuilder()
+    {
+        $builder = new TreeBuilder();
+
+        return $builder
+            ->root('test')
+            ->children()
+            ->variableNode('key')
+            ->validate()
+        ;
+    }
+
+    /**
+     * Close the validation process and finalize with the given config.
+     *
+     * @param TreeBuilder $testBuilder The tree builder to finalize
+     * @param array       $config      The config you want to use for the finalization, if nothing provided
+     *                                 a simple array('key'=>'value') will be used
+     *
+     * @return array The finalized config values
+     */
+    protected function finalizeTestBuilder($testBuilder, $config = null)
+    {
+        return $testBuilder
+            ->end()
+            ->end()
+            ->end()
+            ->buildTree()
+            ->finalize(null === $config ? array('key' => 'value') : $config)
+        ;
+    }
+
+    /**
+     * Return a closure that will return the given value.
+     *
+     * @param mixed $val The value that the closure must return
+     *
+     * @return \Closure
+     */
+    protected function returnClosure($val)
+    {
+        return function ($v) use ($val) {
+            return $val;
+        };
+    }
+
+    /**
+     * Assert that the given test builder, will return the given value.
+     *
+     * @param mixed       $value       The value to test
+     * @param TreeBuilder $treeBuilder The tree builder to finalize
+     * @param mixed       $config      The config values that new to be finalized
+     */
+    protected function assertFinalizedValueIs($value, $treeBuilder, $config = null)
+    {
+        $this->assertEquals(array('key' => $value), $this->finalizeTestBuilder($treeBuilder, $config));
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/NodeBuilderTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/NodeBuilderTest.php
new file mode 100644
index 0000000..22c399c
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/NodeBuilderTest.php
@@ -0,0 +1,94 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition\Builder;
+
+use Symfony\Component\Config\Definition\Builder\NodeBuilder as BaseNodeBuilder;
+use Symfony\Component\Config\Definition\Builder\VariableNodeDefinition as BaseVariableNodeDefinition;
+
+class NodeBuilderTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @expectedException \RuntimeException
+     */
+    public function testThrowsAnExceptionWhenTryingToCreateANonRegisteredNodeType()
+    {
+        $builder = new BaseNodeBuilder();
+        $builder->node('', 'foobar');
+    }
+
+    /**
+     * @expectedException \RuntimeException
+     */
+    public function testThrowsAnExceptionWhenTheNodeClassIsNotFound()
+    {
+        $builder = new BaseNodeBuilder();
+        $builder
+            ->setNodeClass('noclasstype', '\\foo\\bar\\noclass')
+            ->node('', 'noclasstype');
+    }
+
+    public function testAddingANewNodeType()
+    {
+        $class = __NAMESPACE__.'\\SomeNodeDefinition';
+
+        $builder = new BaseNodeBuilder();
+        $node = $builder
+            ->setNodeClass('newtype', $class)
+            ->node('', 'newtype');
+
+        $this->assertInstanceOf($class, $node);
+    }
+
+    public function testOverridingAnExistingNodeType()
+    {
+        $class = __NAMESPACE__.'\\SomeNodeDefinition';
+
+        $builder = new BaseNodeBuilder();
+        $node = $builder
+            ->setNodeClass('variable', $class)
+            ->node('', 'variable');
+
+        $this->assertInstanceOf($class, $node);
+    }
+
+    public function testNodeTypesAreNotCaseSensitive()
+    {
+        $builder = new BaseNodeBuilder();
+
+        $node1 = $builder->node('', 'VaRiAbLe');
+        $node2 = $builder->node('', 'variable');
+
+        $this->assertInstanceOf(get_class($node1), $node2);
+
+        $builder->setNodeClass('CuStOm', __NAMESPACE__.'\\SomeNodeDefinition');
+
+        $node1 = $builder->node('', 'CUSTOM');
+        $node2 = $builder->node('', 'custom');
+
+        $this->assertInstanceOf(get_class($node1), $node2);
+    }
+
+    public function testNumericNodeCreation()
+    {
+        $builder = new BaseNodeBuilder();
+
+        $node = $builder->integerNode('foo')->min(3)->max(5);
+        $this->assertInstanceOf('Symfony\Component\Config\Definition\Builder\IntegerNodeDefinition', $node);
+
+        $node = $builder->floatNode('bar')->min(3.0)->max(5.0);
+        $this->assertInstanceOf('Symfony\Component\Config\Definition\Builder\FloatNodeDefinition', $node);
+    }
+}
+
+class SomeNodeDefinition extends BaseVariableNodeDefinition
+{
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/NumericNodeDefinitionTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/NumericNodeDefinitionTest.php
new file mode 100644
index 0000000..cf0813a
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/NumericNodeDefinitionTest.php
@@ -0,0 +1,93 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition\Builder;
+
+use Symfony\Component\Config\Definition\Builder\IntegerNodeDefinition as NumericNodeDefinition;
+use Symfony\Component\Config\Definition\Builder\IntegerNodeDefinition;
+use Symfony\Component\Config\Definition\Builder\FloatNodeDefinition;
+
+class NumericNodeDefinitionTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @expectedException \InvalidArgumentException
+     * @expectedExceptionMessage You cannot define a min(4) as you already have a max(3)
+     */
+    public function testIncoherentMinAssertion()
+    {
+        $def = new NumericNodeDefinition('foo');
+        $def->max(3)->min(4);
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     * @expectedExceptionMessage You cannot define a max(2) as you already have a min(3)
+     */
+    public function testIncoherentMaxAssertion()
+    {
+        $node = new NumericNodeDefinition('foo');
+        $node->min(3)->max(2);
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
+     * @expectedExceptionMessage The value 4 is too small for path "foo". Should be greater than or equal to 5
+     */
+    public function testIntegerMinAssertion()
+    {
+        $def = new IntegerNodeDefinition('foo');
+        $def->min(5)->getNode()->finalize(4);
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
+     * @expectedExceptionMessage The value 4 is too big for path "foo". Should be less than or equal to 3
+     */
+    public function testIntegerMaxAssertion()
+    {
+        $def = new IntegerNodeDefinition('foo');
+        $def->max(3)->getNode()->finalize(4);
+    }
+
+    public function testIntegerValidMinMaxAssertion()
+    {
+        $def = new IntegerNodeDefinition('foo');
+        $node = $def->min(3)->max(7)->getNode();
+        $this->assertEquals(4, $node->finalize(4));
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
+     * @expectedExceptionMessage The value 400 is too small for path "foo". Should be greater than or equal to 500
+     */
+    public function testFloatMinAssertion()
+    {
+        $def = new FloatNodeDefinition('foo');
+        $def->min(5E2)->getNode()->finalize(4e2);
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
+     * @expectedExceptionMessage The value 4.3 is too big for path "foo". Should be less than or equal to 0.3
+     */
+    public function testFloatMaxAssertion()
+    {
+        $def = new FloatNodeDefinition('foo');
+        $def->max(0.3)->getNode()->finalize(4.3);
+    }
+
+    public function testFloatValidMinMaxAssertion()
+    {
+        $def = new FloatNodeDefinition('foo');
+        $node = $def->min(3.0)->max(7e2)->getNode();
+        $this->assertEquals(4.5, $node->finalize(4.5));
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/TreeBuilderTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/TreeBuilderTest.php
new file mode 100644
index 0000000..00e27c6
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Builder/TreeBuilderTest.php
@@ -0,0 +1,126 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition\Builder;
+
+use Symfony\Component\Config\Tests\Definition\Builder\NodeBuilder as CustomNodeBuilder;
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+
+require __DIR__.'/../../Fixtures/Builder/NodeBuilder.php';
+require __DIR__.'/../../Fixtures/Builder/BarNodeDefinition.php';
+require __DIR__.'/../../Fixtures/Builder/VariableNodeDefinition.php';
+
+class TreeBuilderTest extends \PHPUnit_Framework_TestCase
+{
+    public function testUsingACustomNodeBuilder()
+    {
+        $builder = new TreeBuilder();
+        $root = $builder->root('custom', 'array', new CustomNodeBuilder());
+
+        $nodeBuilder = $root->children();
+
+        $this->assertInstanceOf('Symfony\Component\Config\Tests\Definition\Builder\NodeBuilder', $nodeBuilder);
+
+        $nodeBuilder = $nodeBuilder->arrayNode('deeper')->children();
+
+        $this->assertInstanceOf('Symfony\Component\Config\Tests\Definition\Builder\NodeBuilder', $nodeBuilder);
+    }
+
+    public function testOverrideABuiltInNodeType()
+    {
+        $builder = new TreeBuilder();
+        $root = $builder->root('override', 'array', new CustomNodeBuilder());
+
+        $definition = $root->children()->variableNode('variable');
+
+        $this->assertInstanceOf('Symfony\Component\Config\Tests\Definition\Builder\VariableNodeDefinition', $definition);
+    }
+
+    public function testAddANodeType()
+    {
+        $builder = new TreeBuilder();
+        $root = $builder->root('override', 'array', new CustomNodeBuilder());
+
+        $definition = $root->children()->barNode('variable');
+
+        $this->assertInstanceOf('Symfony\Component\Config\Tests\Definition\Builder\BarNodeDefinition', $definition);
+    }
+
+    public function testCreateABuiltInNodeTypeWithACustomNodeBuilder()
+    {
+        $builder = new TreeBuilder();
+        $root = $builder->root('builtin', 'array', new CustomNodeBuilder());
+
+        $definition = $root->children()->booleanNode('boolean');
+
+        $this->assertInstanceOf('Symfony\Component\Config\Definition\Builder\BooleanNodeDefinition', $definition);
+    }
+
+    public function testPrototypedArrayNodeUseTheCustomNodeBuilder()
+    {
+        $builder = new TreeBuilder();
+        $root = $builder->root('override', 'array', new CustomNodeBuilder());
+
+        $root->prototype('bar')->end();
+    }
+
+    public function testAnExtendedNodeBuilderGetsPropagatedToTheChildren()
+    {
+        $builder = new TreeBuilder();
+
+        $builder->root('propagation')
+            ->children()
+                ->setNodeClass('extended', 'Symfony\Component\Config\Tests\Definition\Builder\VariableNodeDefinition')
+                ->node('foo', 'extended')->end()
+                ->arrayNode('child')
+                    ->children()
+                        ->node('foo', 'extended')
+                    ->end()
+                ->end()
+            ->end()
+        ->end();
+    }
+
+    public function testDefinitionInfoGetsTransferredToNode()
+    {
+        $builder = new TreeBuilder();
+
+        $builder->root('test')->info('root info')
+            ->children()
+                ->node('child', 'variable')->info('child info')->defaultValue('default')
+            ->end()
+        ->end();
+
+        $tree = $builder->buildTree();
+        $children = $tree->getChildren();
+
+        $this->assertEquals('root info', $tree->getInfo());
+        $this->assertEquals('child info', $children['child']->getInfo());
+    }
+
+    public function testDefinitionExampleGetsTransferredToNode()
+    {
+        $builder = new TreeBuilder();
+
+        $builder->root('test')
+            ->example(array('key' => 'value'))
+            ->children()
+                ->node('child', 'variable')->info('child info')->defaultValue('default')->example('example')
+            ->end()
+        ->end();
+
+        $tree = $builder->buildTree();
+        $children = $tree->getChildren();
+
+        $this->assertTrue(is_array($tree->getExample()));
+        $this->assertEquals('example', $children['child']->getExample());
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Dumper/XmlReferenceDumperTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Dumper/XmlReferenceDumperTest.php
new file mode 100644
index 0000000..ab6bdaa
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Dumper/XmlReferenceDumperTest.php
@@ -0,0 +1,80 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition\Dumper;
+
+use Symfony\Component\Config\Definition\Dumper\XmlReferenceDumper;
+use Symfony\Component\Config\Tests\Fixtures\Configuration\ExampleConfiguration;
+
+class XmlReferenceDumperTest extends \PHPUnit_Framework_TestCase
+{
+    public function testDumper()
+    {
+        $configuration = new ExampleConfiguration();
+
+        $dumper = new XmlReferenceDumper();
+        $this->assertEquals($this->getConfigurationAsString(), $dumper->dump($configuration));
+    }
+
+    public function testNamespaceDumper()
+    {
+        $configuration = new ExampleConfiguration();
+
+        $dumper = new XmlReferenceDumper();
+        $this->assertEquals(str_replace('http://example.org/schema/dic/acme_root', 'http://symfony.com/schema/dic/symfony', $this->getConfigurationAsString()), $dumper->dump($configuration, 'http://symfony.com/schema/dic/symfony'));
+    }
+
+    private function getConfigurationAsString()
+    {
+        return <<<EOL
+<!-- Namespace: http://example.org/schema/dic/acme_root -->
+<!-- scalar-required: Required -->
+<!-- enum: One of "this"; "that" -->
+<config
+    boolean="true"
+    scalar-empty=""
+    scalar-null="null"
+    scalar-true="true"
+    scalar-false="false"
+    scalar-default="default"
+    scalar-array-empty=""
+    scalar-array-defaults="elem1,elem2"
+    scalar-required=""
+    enum=""
+>
+
+    <!-- some info -->
+    <!--
+        child3: this is a long
+                multi-line info text
+                which should be indented;
+                Example: example setting
+    -->
+    <array
+        child1=""
+        child2=""
+        child3=""
+    />
+
+    <!-- prototype -->
+    <parameter name="parameter name">scalar value</parameter>
+
+    <!-- prototype -->
+    <connection
+        user=""
+        pass=""
+    />
+
+</config>
+
+EOL;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Dumper/YamlReferenceDumperTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Dumper/YamlReferenceDumperTest.php
new file mode 100644
index 0000000..4775235
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/Dumper/YamlReferenceDumperTest.php
@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition\Dumper;
+
+use Symfony\Component\Config\Definition\Dumper\YamlReferenceDumper;
+use Symfony\Component\Config\Tests\Fixtures\Configuration\ExampleConfiguration;
+
+class YamlReferenceDumperTest extends \PHPUnit_Framework_TestCase
+{
+    public function testDumper()
+    {
+        $configuration = new ExampleConfiguration();
+
+        $dumper = new YamlReferenceDumper();
+
+        $this->markTestIncomplete('The Yaml Dumper currently does not support prototyped arrays');
+        $this->assertEquals($this->getConfigurationAsString(), $dumper->dump($configuration));
+    }
+
+    private function getConfigurationAsString()
+    {
+        return <<<EOL
+acme_root:
+    boolean:              true
+    scalar_empty:         ~
+    scalar_null:          ~
+    scalar_true:          true
+    scalar_false:         false
+    scalar_default:       default
+    scalar_array_empty:   []
+    scalar_array_defaults:
+
+        # Defaults:
+        - elem1
+        - elem2
+    scalar_required:      ~ # Required
+    enum:                 ~ # One of "this"; "that"
+
+    # some info
+    array:
+        child1:               ~
+        child2:               ~
+
+        # this is a long
+        # multi-line info text
+        # which should be indented
+        child3:               ~ # Example: example setting
+    parameters:
+
+        # Prototype
+        name:                 ~
+    connections:
+        # Prototype
+        - { user: ~, pass: ~ }
+
+EOL;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/EnumNodeTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/EnumNodeTest.php
new file mode 100644
index 0000000..2b84de6
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/EnumNodeTest.php
@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition;
+
+use Symfony\Component\Config\Definition\EnumNode;
+
+class EnumNodeTest extends \PHPUnit_Framework_TestCase
+{
+    public function testFinalizeValue()
+    {
+        $node = new EnumNode('foo', null, array('foo', 'bar'));
+        $this->assertSame('foo', $node->finalize('foo'));
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testConstructionWithOneValue()
+    {
+        new EnumNode('foo', null, array('foo', 'foo'));
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
+     * @expectedExceptionMessage The value "foobar" is not allowed for path "foo". Permissible values: "foo", "bar"
+     */
+    public function testFinalizeWithInvalidValue()
+    {
+        $node = new EnumNode('foo', null, array('foo', 'bar'));
+        $node->finalize('foobar');
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/FinalizationTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/FinalizationTest.php
new file mode 100644
index 0000000..19fc347
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/FinalizationTest.php
@@ -0,0 +1,73 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition;
+
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+use Symfony\Component\Config\Definition\Processor;
+use Symfony\Component\Config\Definition\NodeInterface;
+
+class FinalizationTest extends \PHPUnit_Framework_TestCase
+{
+    public function testUnsetKeyWithDeepHierarchy()
+    {
+        $tb = new TreeBuilder();
+        $tree = $tb
+            ->root('config', 'array')
+                ->children()
+                    ->node('level1', 'array')
+                        ->canBeUnset()
+                        ->children()
+                            ->node('level2', 'array')
+                                ->canBeUnset()
+                                ->children()
+                                    ->node('somevalue', 'scalar')->end()
+                                    ->node('anothervalue', 'scalar')->end()
+                                ->end()
+                            ->end()
+                            ->node('level1_scalar', 'scalar')->end()
+                        ->end()
+                    ->end()
+                ->end()
+            ->end()
+            ->buildTree()
+        ;
+
+        $a = array(
+            'level1' => array(
+                'level2' => array(
+                    'somevalue' => 'foo',
+                    'anothervalue' => 'bar',
+                ),
+                'level1_scalar' => 'foo',
+            ),
+        );
+
+        $b = array(
+            'level1' => array(
+                'level2' => false,
+            ),
+        );
+
+        $this->assertEquals(array(
+            'level1' => array(
+                'level1_scalar' => 'foo',
+            ),
+        ), $this->process($tree, array($a, $b)));
+    }
+
+    protected function process(NodeInterface $tree, array $configs)
+    {
+        $processor = new Processor();
+
+        return $processor->process($tree, $configs);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/FloatNodeTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/FloatNodeTest.php
new file mode 100644
index 0000000..4f308ca
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/FloatNodeTest.php
@@ -0,0 +1,64 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition;
+
+use Symfony\Component\Config\Definition\FloatNode;
+
+class FloatNodeTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @dataProvider getValidValues
+     */
+    public function testNormalize($value)
+    {
+        $node = new FloatNode('test');
+        $this->assertSame($value, $node->normalize($value));
+    }
+
+    public function getValidValues()
+    {
+        return array(
+            array(1798.0),
+            array(-678.987),
+            array(12.56E45),
+            array(0.0),
+            // Integer are accepted too, they will be cast
+            array(17),
+            array(-10),
+            array(0),
+        );
+    }
+
+    /**
+     * @dataProvider getInvalidValues
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidTypeException
+     */
+    public function testNormalizeThrowsExceptionOnInvalidValues($value)
+    {
+        $node = new FloatNode('test');
+        $node->normalize($value);
+    }
+
+    public function getInvalidValues()
+    {
+        return array(
+            array(null),
+            array(''),
+            array('foo'),
+            array(true),
+            array(false),
+            array(array()),
+            array(array('foo' => 'bar')),
+            array(new \stdClass()),
+        );
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/IntegerNodeTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/IntegerNodeTest.php
new file mode 100644
index 0000000..1527db7
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/IntegerNodeTest.php
@@ -0,0 +1,61 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition;
+
+use Symfony\Component\Config\Definition\IntegerNode;
+
+class IntegerNodeTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @dataProvider getValidValues
+     */
+    public function testNormalize($value)
+    {
+        $node = new IntegerNode('test');
+        $this->assertSame($value, $node->normalize($value));
+    }
+
+    public function getValidValues()
+    {
+        return array(
+            array(1798),
+            array(-678),
+            array(0),
+        );
+    }
+
+    /**
+     * @dataProvider getInvalidValues
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidTypeException
+     */
+    public function testNormalizeThrowsExceptionOnInvalidValues($value)
+    {
+        $node = new IntegerNode('test');
+        $node->normalize($value);
+    }
+
+    public function getInvalidValues()
+    {
+        return array(
+            array(null),
+            array(''),
+            array('foo'),
+            array(true),
+            array(false),
+            array(0.0),
+            array(0.1),
+            array(array()),
+            array(array('foo' => 'bar')),
+            array(new \stdClass()),
+        );
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/MergeTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/MergeTest.php
new file mode 100644
index 0000000..08ddc32
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/MergeTest.php
@@ -0,0 +1,195 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition;
+
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+
+class MergeTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\ForbiddenOverwriteException
+     */
+    public function testForbiddenOverwrite()
+    {
+        $tb = new TreeBuilder();
+        $tree = $tb
+            ->root('root', 'array')
+                ->children()
+                    ->node('foo', 'scalar')
+                        ->cannotBeOverwritten()
+                    ->end()
+                ->end()
+            ->end()
+            ->buildTree()
+        ;
+
+        $a = array(
+            'foo' => 'bar',
+        );
+
+        $b = array(
+            'foo' => 'moo',
+        );
+
+        $tree->merge($a, $b);
+    }
+
+    public function testUnsetKey()
+    {
+        $tb = new TreeBuilder();
+        $tree = $tb
+            ->root('root', 'array')
+                ->children()
+                    ->node('foo', 'scalar')->end()
+                    ->node('bar', 'scalar')->end()
+                    ->node('unsettable', 'array')
+                        ->canBeUnset()
+                        ->children()
+                            ->node('foo', 'scalar')->end()
+                            ->node('bar', 'scalar')->end()
+                        ->end()
+                    ->end()
+                    ->node('unsetted', 'array')
+                        ->canBeUnset()
+                        ->prototype('scalar')->end()
+                    ->end()
+                ->end()
+            ->end()
+            ->buildTree()
+        ;
+
+        $a = array(
+            'foo' => 'bar',
+            'unsettable' => array(
+                'foo' => 'a',
+                'bar' => 'b',
+            ),
+            'unsetted' => false,
+        );
+
+        $b = array(
+            'foo' => 'moo',
+            'bar' => 'b',
+            'unsettable' => false,
+            'unsetted' => array('a', 'b'),
+        );
+
+        $this->assertEquals(array(
+            'foo' => 'moo',
+            'bar' => 'b',
+            'unsettable' => false,
+            'unsetted' => array('a', 'b'),
+        ), $tree->merge($a, $b));
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
+     */
+    public function testDoesNotAllowNewKeysInSubsequentConfigs()
+    {
+        $tb = new TreeBuilder();
+        $tree = $tb
+            ->root('config', 'array')
+                ->children()
+                    ->node('test', 'array')
+                        ->disallowNewKeysInSubsequentConfigs()
+                        ->useAttributeAsKey('key')
+                        ->prototype('array')
+                            ->children()
+                                ->node('value', 'scalar')->end()
+                            ->end()
+                        ->end()
+                    ->end()
+                ->end()
+            ->end()
+            ->buildTree();
+
+        $a = array(
+            'test' => array(
+                'a' => array('value' => 'foo'),
+            ),
+        );
+
+        $b = array(
+            'test' => array(
+                'b' => array('value' => 'foo'),
+            ),
+        );
+
+        $tree->merge($a, $b);
+    }
+
+    public function testPerformsNoDeepMerging()
+    {
+        $tb = new TreeBuilder();
+
+        $tree = $tb
+            ->root('config', 'array')
+                ->children()
+                    ->node('no_deep_merging', 'array')
+                        ->performNoDeepMerging()
+                        ->children()
+                            ->node('foo', 'scalar')->end()
+                            ->node('bar', 'scalar')->end()
+                        ->end()
+                    ->end()
+                ->end()
+            ->end()
+            ->buildTree()
+        ;
+
+        $a = array(
+            'no_deep_merging' => array(
+                'foo' => 'a',
+                'bar' => 'b',
+            ),
+        );
+
+        $b = array(
+            'no_deep_merging' => array(
+                'c' => 'd',
+            ),
+        );
+
+        $this->assertEquals(array(
+            'no_deep_merging' => array(
+                'c' => 'd',
+            ),
+        ), $tree->merge($a, $b));
+    }
+
+    public function testPrototypeWithoutAKeyAttribute()
+    {
+        $tb = new TreeBuilder();
+
+        $tree = $tb
+            ->root('config', 'array')
+                ->children()
+                    ->arrayNode('append_elements')
+                        ->prototype('scalar')->end()
+                    ->end()
+                ->end()
+            ->end()
+            ->buildTree()
+        ;
+
+        $a = array(
+            'append_elements' => array('a', 'b'),
+        );
+
+        $b = array(
+            'append_elements' => array('c', 'd'),
+        );
+
+        $this->assertEquals(array('append_elements' => array('a', 'b', 'c', 'd')), $tree->merge($a, $b));
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/NormalizationTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/NormalizationTest.php
new file mode 100644
index 0000000..a896f96
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/NormalizationTest.php
@@ -0,0 +1,229 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition;
+
+use Symfony\Component\Config\Definition\NodeInterface;
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+
+class NormalizationTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @dataProvider getEncoderTests
+     */
+    public function testNormalizeEncoders($denormalized)
+    {
+        $tb = new TreeBuilder();
+        $tree = $tb
+            ->root('root_name', 'array')
+                ->fixXmlConfig('encoder')
+                ->children()
+                    ->node('encoders', 'array')
+                        ->useAttributeAsKey('class')
+                        ->prototype('array')
+                            ->beforeNormalization()->ifString()->then(function ($v) { return array('algorithm' => $v); })->end()
+                            ->children()
+                                ->node('algorithm', 'scalar')->end()
+                            ->end()
+                        ->end()
+                    ->end()
+                ->end()
+            ->end()
+            ->buildTree()
+        ;
+
+        $normalized = array(
+            'encoders' => array(
+                'foo' => array('algorithm' => 'plaintext'),
+            ),
+        );
+
+        $this->assertNormalized($tree, $denormalized, $normalized);
+    }
+
+    public function getEncoderTests()
+    {
+        $configs = array();
+
+        // XML
+        $configs[] = array(
+            'encoder' => array(
+                array('class' => 'foo', 'algorithm' => 'plaintext'),
+            ),
+        );
+
+        // XML when only one element of this type
+        $configs[] = array(
+            'encoder' => array('class' => 'foo', 'algorithm' => 'plaintext'),
+        );
+
+        // YAML/PHP
+        $configs[] = array(
+            'encoders' => array(
+                array('class' => 'foo', 'algorithm' => 'plaintext'),
+            ),
+        );
+
+        // YAML/PHP
+        $configs[] = array(
+            'encoders' => array(
+                'foo' => 'plaintext',
+            ),
+        );
+
+        // YAML/PHP
+        $configs[] = array(
+            'encoders' => array(
+                'foo' => array('algorithm' => 'plaintext'),
+            ),
+        );
+
+        return array_map(function ($v) {
+            return array($v);
+        }, $configs);
+    }
+
+    /**
+     * @dataProvider getAnonymousKeysTests
+     */
+    public function testAnonymousKeysArray($denormalized)
+    {
+        $tb = new TreeBuilder();
+        $tree = $tb
+            ->root('root', 'array')
+                ->children()
+                    ->node('logout', 'array')
+                        ->fixXmlConfig('handler')
+                        ->children()
+                            ->node('handlers', 'array')
+                                ->prototype('scalar')->end()
+                            ->end()
+                        ->end()
+                    ->end()
+                ->end()
+            ->end()
+            ->buildTree()
+        ;
+
+        $normalized = array('logout' => array('handlers' => array('a', 'b', 'c')));
+
+        $this->assertNormalized($tree, $denormalized, $normalized);
+    }
+
+    public function getAnonymousKeysTests()
+    {
+        $configs = array();
+
+        $configs[] = array(
+            'logout' => array(
+                'handlers' => array('a', 'b', 'c'),
+            ),
+        );
+
+        $configs[] = array(
+            'logout' => array(
+                'handler' => array('a', 'b', 'c'),
+            ),
+        );
+
+        return array_map(function ($v) { return array($v); }, $configs);
+    }
+
+    /**
+     * @dataProvider getNumericKeysTests
+     */
+    public function testNumericKeysAsAttributes($denormalized)
+    {
+        $normalized = array(
+            'thing' => array(42 => array('foo', 'bar'), 1337 => array('baz', 'qux')),
+        );
+
+        $this->assertNormalized($this->getNumericKeysTestTree(), $denormalized, $normalized);
+    }
+
+    public function getNumericKeysTests()
+    {
+        $configs = array();
+
+        $configs[] = array(
+            'thing' => array(
+                42 => array('foo', 'bar'), 1337 => array('baz', 'qux'),
+            ),
+        );
+
+        $configs[] = array(
+            'thing' => array(
+                array('foo', 'bar', 'id' => 42), array('baz', 'qux', 'id' => 1337),
+            ),
+        );
+
+        return array_map(function ($v) { return array($v); }, $configs);
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
+     * @expectedExceptionMessage The attribute "id" must be set for path "root.thing".
+     */
+    public function testNonAssociativeArrayThrowsExceptionIfAttributeNotSet()
+    {
+        $denormalized = array(
+            'thing' => array(
+                array('foo', 'bar'), array('baz', 'qux'),
+            ),
+        );
+
+        $this->assertNormalized($this->getNumericKeysTestTree(), $denormalized, array());
+    }
+
+    public function testAssociativeArrayPreserveKeys()
+    {
+        $tb = new TreeBuilder();
+        $tree = $tb
+            ->root('root', 'array')
+                ->prototype('array')
+                    ->children()
+                        ->node('foo', 'scalar')->end()
+                    ->end()
+                ->end()
+            ->end()
+            ->buildTree()
+        ;
+
+        $data = array('first' => array('foo' => 'bar'));
+
+        $this->assertNormalized($tree, $data, $data);
+    }
+
+    public static function assertNormalized(NodeInterface $tree, $denormalized, $normalized)
+    {
+        self::assertSame($normalized, $tree->normalize($denormalized));
+    }
+
+    private function getNumericKeysTestTree()
+    {
+        $tb = new TreeBuilder();
+        $tree = $tb
+            ->root('root', 'array')
+                ->children()
+                    ->node('thing', 'array')
+                        ->useAttributeAsKey('id')
+                        ->prototype('array')
+                            ->prototype('scalar')->end()
+                        ->end()
+                    ->end()
+                ->end()
+            ->end()
+            ->buildTree()
+        ;
+
+        return $tree;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/PrototypedArrayNodeTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/PrototypedArrayNodeTest.php
new file mode 100644
index 0000000..c343fcf
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/PrototypedArrayNodeTest.php
@@ -0,0 +1,180 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition;
+
+use Symfony\Component\Config\Definition\PrototypedArrayNode;
+use Symfony\Component\Config\Definition\ArrayNode;
+use Symfony\Component\Config\Definition\ScalarNode;
+
+class PrototypedArrayNodeTest extends \PHPUnit_Framework_TestCase
+{
+    public function testGetDefaultValueReturnsAnEmptyArrayForPrototypes()
+    {
+        $node = new PrototypedArrayNode('root');
+        $prototype = new ArrayNode(null, $node);
+        $node->setPrototype($prototype);
+        $this->assertEmpty($node->getDefaultValue());
+    }
+
+    public function testGetDefaultValueReturnsDefaultValueForPrototypes()
+    {
+        $node = new PrototypedArrayNode('root');
+        $prototype = new ArrayNode(null, $node);
+        $node->setPrototype($prototype);
+        $node->setDefaultValue(array('test'));
+        $this->assertEquals(array('test'), $node->getDefaultValue());
+    }
+
+    // a remapped key (e.g. "mapping" -> "mappings") should be unset after being used
+    public function testRemappedKeysAreUnset()
+    {
+        $node = new ArrayNode('root');
+        $mappingsNode = new PrototypedArrayNode('mappings');
+        $node->addChild($mappingsNode);
+
+        // each item under mappings is just a scalar
+        $prototype = new ScalarNode(null, $mappingsNode);
+        $mappingsNode->setPrototype($prototype);
+
+        $remappings = array();
+        $remappings[] = array('mapping', 'mappings');
+        $node->setXmlRemappings($remappings);
+
+        $normalized = $node->normalize(array('mapping' => array('foo', 'bar')));
+        $this->assertEquals(array('mappings' => array('foo', 'bar')), $normalized);
+    }
+
+    /**
+     * Tests that when a key attribute is mapped, that key is removed from the array.
+     *
+     *     <things>
+     *         <option id="option1" value="foo">
+     *         <option id="option2" value="bar">
+     *     </things>
+     *
+     * The above should finally be mapped to an array that looks like this
+     * (because "id" is the key attribute).
+     *
+     *     array(
+     *         'things' => array(
+     *             'option1' => 'foo',
+     *             'option2' => 'bar',
+     *         )
+     *     )
+     */
+    public function testMappedAttributeKeyIsRemoved()
+    {
+        $node = new PrototypedArrayNode('root');
+        $node->setKeyAttribute('id', true);
+
+        // each item under the root is an array, with one scalar item
+        $prototype = new ArrayNode(null, $node);
+        $prototype->addChild(new ScalarNode('foo'));
+        $node->setPrototype($prototype);
+
+        $children = array();
+        $children[] = array('id' => 'item_name', 'foo' => 'bar');
+        $normalized = $node->normalize($children);
+
+        $expected = array();
+        $expected['item_name'] = array('foo' => 'bar');
+        $this->assertEquals($expected, $normalized);
+    }
+
+    /**
+     * Tests the opposite of the testMappedAttributeKeyIsRemoved because
+     * the removal can be toggled with an option.
+     */
+    public function testMappedAttributeKeyNotRemoved()
+    {
+        $node = new PrototypedArrayNode('root');
+        $node->setKeyAttribute('id', false);
+
+        // each item under the root is an array, with two scalar items
+        $prototype = new ArrayNode(null, $node);
+        $prototype->addChild(new ScalarNode('foo'));
+        $prototype->addChild(new ScalarNode('id')); // the key attribute will remain
+        $node->setPrototype($prototype);
+
+        $children = array();
+        $children[] = array('id' => 'item_name', 'foo' => 'bar');
+        $normalized = $node->normalize($children);
+
+        $expected = array();
+        $expected['item_name'] = array('id' => 'item_name', 'foo' => 'bar');
+        $this->assertEquals($expected, $normalized);
+    }
+
+    public function testAddDefaultChildren()
+    {
+        $node = $this->getPrototypeNodeWithDefaultChildren();
+        $node->setAddChildrenIfNoneSet();
+        $this->assertTrue($node->hasDefaultValue());
+        $this->assertEquals(array(array('foo' => 'bar')), $node->getDefaultValue());
+
+        $node = $this->getPrototypeNodeWithDefaultChildren();
+        $node->setKeyAttribute('foobar');
+        $node->setAddChildrenIfNoneSet();
+        $this->assertTrue($node->hasDefaultValue());
+        $this->assertEquals(array('defaults' => array('foo' => 'bar')), $node->getDefaultValue());
+
+        $node = $this->getPrototypeNodeWithDefaultChildren();
+        $node->setKeyAttribute('foobar');
+        $node->setAddChildrenIfNoneSet('defaultkey');
+        $this->assertTrue($node->hasDefaultValue());
+        $this->assertEquals(array('defaultkey' => array('foo' => 'bar')), $node->getDefaultValue());
+
+        $node = $this->getPrototypeNodeWithDefaultChildren();
+        $node->setKeyAttribute('foobar');
+        $node->setAddChildrenIfNoneSet(array('defaultkey'));
+        $this->assertTrue($node->hasDefaultValue());
+        $this->assertEquals(array('defaultkey' => array('foo' => 'bar')), $node->getDefaultValue());
+
+        $node = $this->getPrototypeNodeWithDefaultChildren();
+        $node->setKeyAttribute('foobar');
+        $node->setAddChildrenIfNoneSet(array('dk1', 'dk2'));
+        $this->assertTrue($node->hasDefaultValue());
+        $this->assertEquals(array('dk1' => array('foo' => 'bar'), 'dk2' => array('foo' => 'bar')), $node->getDefaultValue());
+
+        $node = $this->getPrototypeNodeWithDefaultChildren();
+        $node->setAddChildrenIfNoneSet(array(5, 6));
+        $this->assertTrue($node->hasDefaultValue());
+        $this->assertEquals(array(0 => array('foo' => 'bar'), 1 => array('foo' => 'bar')), $node->getDefaultValue());
+
+        $node = $this->getPrototypeNodeWithDefaultChildren();
+        $node->setAddChildrenIfNoneSet(2);
+        $this->assertTrue($node->hasDefaultValue());
+        $this->assertEquals(array(array('foo' => 'bar'), array('foo' => 'bar')), $node->getDefaultValue());
+    }
+
+    public function testDefaultChildrenWinsOverDefaultValue()
+    {
+        $node = $this->getPrototypeNodeWithDefaultChildren();
+        $node->setAddChildrenIfNoneSet();
+        $node->setDefaultValue(array('bar' => 'foo'));
+        $this->assertTrue($node->hasDefaultValue());
+        $this->assertEquals(array(array('foo' => 'bar')), $node->getDefaultValue());
+    }
+
+    protected function getPrototypeNodeWithDefaultChildren()
+    {
+        $node = new PrototypedArrayNode('root');
+        $prototype = new ArrayNode(null, $node);
+        $child = new ScalarNode('foo');
+        $child->setDefaultValue('bar');
+        $prototype->addChild($child);
+        $prototype->setAddIfNotSet(true);
+        $node->setPrototype($prototype);
+
+        return $node;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/ScalarNodeTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/ScalarNodeTest.php
new file mode 100644
index 0000000..a798410
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Definition/ScalarNodeTest.php
@@ -0,0 +1,79 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition;
+
+use Symfony\Component\Config\Definition\ScalarNode;
+
+class ScalarNodeTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @dataProvider getValidValues
+     */
+    public function testNormalize($value)
+    {
+        $node = new ScalarNode('test');
+        $this->assertSame($value, $node->normalize($value));
+    }
+
+    public function getValidValues()
+    {
+        return array(
+            array(false),
+            array(true),
+            array(null),
+            array(''),
+            array('foo'),
+            array(0),
+            array(1),
+            array(0.0),
+            array(0.1),
+        );
+    }
+
+    /**
+     * @dataProvider getInvalidValues
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidTypeException
+     */
+    public function testNormalizeThrowsExceptionOnInvalidValues($value)
+    {
+        $node = new ScalarNode('test');
+        $node->normalize($value);
+    }
+
+    public function getInvalidValues()
+    {
+        return array(
+            array(array()),
+            array(array('foo' => 'bar')),
+            array(new \stdClass()),
+        );
+    }
+
+    public function testNormalizeThrowsExceptionWithoutHint()
+    {
+        $node = new ScalarNode('test');
+
+        $this->setExpectedException('Symfony\Component\Config\Definition\Exception\InvalidTypeException', 'Invalid type for path "test". Expected scalar, but got array.');
+
+        $node->normalize(array());
+    }
+
+    public function testNormalizeThrowsExceptionWithErrorMessage()
+    {
+        $node = new ScalarNode('test');
+        $node->setInfo('"the test value"');
+
+        $this->setExpectedException('Symfony\Component\Config\Definition\Exception\InvalidTypeException', "Invalid type for path \"test\". Expected scalar, but got array.\nHint: \"the test value\"");
+
+        $node->normalize(array());
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Exception/FileLoaderLoadExceptionTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Exception/FileLoaderLoadExceptionTest.php
new file mode 100644
index 0000000..4d91535
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Exception/FileLoaderLoadExceptionTest.php
@@ -0,0 +1,83 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Exception;
+
+use Symfony\Component\Config\Exception\FileLoaderLoadException;
+
+class FileLoaderLoadExceptionTest extends \PHPUnit_Framework_TestCase
+{
+    public function testMessageCannotLoadResource()
+    {
+        $exception = new FileLoaderLoadException('resource', null);
+        $this->assertEquals('Cannot load resource "resource".', $exception->getMessage());
+    }
+
+    public function testMessageCannotImportResourceFromSource()
+    {
+        $exception = new FileLoaderLoadException('resource', 'sourceResource');
+        $this->assertEquals('Cannot import resource "resource" from "sourceResource".', $exception->getMessage());
+    }
+
+    public function testMessageCannotImportBundleResource()
+    {
+        $exception = new FileLoaderLoadException('@resource', 'sourceResource');
+        $this->assertEquals(
+            'Cannot import resource "@resource" from "sourceResource". '.
+            'Make sure the "resource" bundle is correctly registered and loaded in the application kernel class.',
+            $exception->getMessage()
+        );
+    }
+
+    public function testMessageHasPreviousErrorWithDotAndUnableToLoad()
+    {
+        $exception = new FileLoaderLoadException(
+            'resource',
+            null,
+            null,
+            new \Exception('There was a previous error with an ending dot.')
+        );
+        $this->assertEquals(
+            'There was a previous error with an ending dot in resource (which is loaded in resource "resource").',
+            $exception->getMessage()
+        );
+    }
+
+    public function testMessageHasPreviousErrorWithoutDotAndUnableToLoad()
+    {
+        $exception = new FileLoaderLoadException(
+            'resource',
+            null,
+            null,
+            new \Exception('There was a previous error with no ending dot')
+        );
+        $this->assertEquals(
+            'There was a previous error with no ending dot in resource (which is loaded in resource "resource").',
+            $exception->getMessage()
+        );
+    }
+
+    public function testMessageHasPreviousErrorAndUnableToLoadBundle()
+    {
+        $exception = new FileLoaderLoadException(
+            '@resource',
+            null,
+            null,
+            new \Exception('There was a previous error with an ending dot.')
+        );
+        $this->assertEquals(
+            'There was a previous error with an ending dot in @resource '.
+            '(which is loaded in resource "@resource"). '.
+            'Make sure the "resource" bundle is correctly registered and loaded in the application kernel class.',
+            $exception->getMessage()
+        );
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/FileLocatorTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/FileLocatorTest.php
new file mode 100644
index 0000000..d479f25
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/FileLocatorTest.php
@@ -0,0 +1,119 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests;
+
+use Symfony\Component\Config\FileLocator;
+
+class FileLocatorTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @dataProvider getIsAbsolutePathTests
+     */
+    public function testIsAbsolutePath($path)
+    {
+        $loader = new FileLocator(array());
+        $r = new \ReflectionObject($loader);
+        $m = $r->getMethod('isAbsolutePath');
+        $m->setAccessible(true);
+
+        $this->assertTrue($m->invoke($loader, $path), '->isAbsolutePath() returns true for an absolute path');
+    }
+
+    public function getIsAbsolutePathTests()
+    {
+        return array(
+            array('/foo.xml'),
+            array('c:\\\\foo.xml'),
+            array('c:/foo.xml'),
+            array('\\server\\foo.xml'),
+            array('https://server/foo.xml'),
+            array('phar://server/foo.xml'),
+        );
+    }
+
+    public function testLocate()
+    {
+        $loader = new FileLocator(__DIR__.'/Fixtures');
+
+        $this->assertEquals(
+            __DIR__.DIRECTORY_SEPARATOR.'FileLocatorTest.php',
+            $loader->locate('FileLocatorTest.php', __DIR__),
+            '->locate() returns the absolute filename if the file exists in the given path'
+        );
+
+        $this->assertEquals(
+            __DIR__.'/Fixtures'.DIRECTORY_SEPARATOR.'foo.xml',
+            $loader->locate('foo.xml', __DIR__),
+            '->locate() returns the absolute filename if the file exists in one of the paths given in the constructor'
+        );
+
+        $this->assertEquals(
+            __DIR__.'/Fixtures'.DIRECTORY_SEPARATOR.'foo.xml',
+            $loader->locate(__DIR__.'/Fixtures'.DIRECTORY_SEPARATOR.'foo.xml', __DIR__),
+            '->locate() returns the absolute filename if the file exists in one of the paths given in the constructor'
+        );
+
+        $loader = new FileLocator(array(__DIR__.'/Fixtures', __DIR__.'/Fixtures/Again'));
+
+        $this->assertEquals(
+            array(__DIR__.'/Fixtures'.DIRECTORY_SEPARATOR.'foo.xml', __DIR__.'/Fixtures/Again'.DIRECTORY_SEPARATOR.'foo.xml'),
+            $loader->locate('foo.xml', __DIR__, false),
+            '->locate() returns an array of absolute filenames'
+        );
+
+        $this->assertEquals(
+            array(__DIR__.'/Fixtures'.DIRECTORY_SEPARATOR.'foo.xml', __DIR__.'/Fixtures/Again'.DIRECTORY_SEPARATOR.'foo.xml'),
+            $loader->locate('foo.xml', __DIR__.'/Fixtures', false),
+            '->locate() returns an array of absolute filenames'
+        );
+
+        $loader = new FileLocator(__DIR__.'/Fixtures/Again');
+
+        $this->assertEquals(
+            array(__DIR__.'/Fixtures'.DIRECTORY_SEPARATOR.'foo.xml', __DIR__.'/Fixtures/Again'.DIRECTORY_SEPARATOR.'foo.xml'),
+            $loader->locate('foo.xml', __DIR__.'/Fixtures', false),
+            '->locate() returns an array of absolute filenames'
+        );
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     * @expectedExceptionMessage The file "foobar.xml" does not exist
+     */
+    public function testLocateThrowsAnExceptionIfTheFileDoesNotExists()
+    {
+        $loader = new FileLocator(array(__DIR__.'/Fixtures'));
+
+        $loader->locate('foobar.xml', __DIR__);
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testLocateThrowsAnExceptionIfTheFileDoesNotExistsInAbsolutePath()
+    {
+        $loader = new FileLocator(array(__DIR__.'/Fixtures'));
+
+        $loader->locate(__DIR__.'/Fixtures/foobar.xml', __DIR__);
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     * @expectedExceptionMessage An empty file name is not valid to be located.
+     */
+    public function testLocateEmpty()
+    {
+        $loader = new FileLocator(array(__DIR__.'/Fixtures'));
+
+        $loader->locate(null, __DIR__);
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Again/foo.xml b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Again/foo.xml
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Again/foo.xml
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Builder/BarNodeDefinition.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Builder/BarNodeDefinition.php
new file mode 100644
index 0000000..47701c1
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Builder/BarNodeDefinition.php
@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition\Builder;
+
+use Symfony\Component\Config\Definition\Builder\NodeDefinition;
+
+class BarNodeDefinition extends NodeDefinition
+{
+    protected function createNode()
+    {
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Builder/NodeBuilder.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Builder/NodeBuilder.php
new file mode 100644
index 0000000..aa59863
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Builder/NodeBuilder.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition\Builder;
+
+use Symfony\Component\Config\Definition\Builder\NodeBuilder as BaseNodeBuilder;
+
+class NodeBuilder extends BaseNodeBuilder
+{
+    public function barNode($name)
+    {
+        return $this->node($name, 'bar');
+    }
+
+    protected function getNodeClass($type)
+    {
+        switch ($type) {
+            case 'variable':
+                return __NAMESPACE__.'\\'.ucfirst($type).'NodeDefinition';
+            case 'bar':
+                return __NAMESPACE__.'\\'.ucfirst($type).'NodeDefinition';
+            default:
+                return parent::getNodeClass($type);
+        }
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Builder/VariableNodeDefinition.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Builder/VariableNodeDefinition.php
new file mode 100644
index 0000000..1017880
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Builder/VariableNodeDefinition.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition\Builder;
+
+use Symfony\Component\Config\Definition\Builder\VariableNodeDefinition as BaseVariableNodeDefinition;
+
+class VariableNodeDefinition extends BaseVariableNodeDefinition
+{
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Configuration/ExampleConfiguration.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Configuration/ExampleConfiguration.php
new file mode 100644
index 0000000..df43e8b
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Configuration/ExampleConfiguration.php
@@ -0,0 +1,71 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Fixtures\Configuration;
+
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+
+class ExampleConfiguration implements ConfigurationInterface
+{
+    public function getConfigTreeBuilder()
+    {
+        $treeBuilder = new TreeBuilder();
+        $rootNode = $treeBuilder->root('acme_root');
+
+        $rootNode
+            ->fixXmlConfig('parameter')
+            ->fixXmlConfig('connection')
+            ->children()
+                ->booleanNode('boolean')->defaultTrue()->end()
+                ->scalarNode('scalar_empty')->end()
+                ->scalarNode('scalar_null')->defaultNull()->end()
+                ->scalarNode('scalar_true')->defaultTrue()->end()
+                ->scalarNode('scalar_false')->defaultFalse()->end()
+                ->scalarNode('scalar_default')->defaultValue('default')->end()
+                ->scalarNode('scalar_array_empty')->defaultValue(array())->end()
+                ->scalarNode('scalar_array_defaults')->defaultValue(array('elem1', 'elem2'))->end()
+                ->scalarNode('scalar_required')->isRequired()->end()
+                ->enumNode('enum')->values(array('this', 'that'))->end()
+                ->arrayNode('array')
+                    ->info('some info')
+                    ->canBeUnset()
+                    ->children()
+                        ->scalarNode('child1')->end()
+                        ->scalarNode('child2')->end()
+                        ->scalarNode('child3')
+                            ->info(
+                                "this is a long\n".
+                                "multi-line info text\n".
+                                'which should be indented'
+                            )
+                            ->example('example setting')
+                        ->end()
+                    ->end()
+                ->end()
+                ->arrayNode('parameters')
+                    ->useAttributeAsKey('name')
+                    ->prototype('scalar')->end()
+                ->end()
+                ->arrayNode('connections')
+                    ->prototype('array')
+                        ->children()
+                            ->scalarNode('user')->end()
+                            ->scalarNode('pass')->end()
+                        ->end()
+                    ->end()
+                ->end()
+            ->end()
+        ;
+
+        return $treeBuilder;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/document_type.xml b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/document_type.xml
new file mode 100644
index 0000000..4c25228
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/document_type.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE scan [<!ENTITY test SYSTEM "php://filter/read=convert.base64-encode/resource={{ resource }}">]>
+<scan></scan>
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/invalid.xml b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/invalid.xml
new file mode 100644
index 0000000..a07af9f
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/invalid.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<root>
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/invalid_schema.xml b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/invalid_schema.xml
new file mode 100644
index 0000000..e2725a2
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/invalid_schema.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<root2 xmlns="http://example.com/schema" />
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/schema.xsd b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/schema.xsd
new file mode 100644
index 0000000..e56820f
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/schema.xsd
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<xsd:schema xmlns="http://example.com/schema"
+    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+    targetNamespace="http://example.com/schema"
+    elementFormDefault="qualified">
+
+  <xsd:element name="root" />
+</xsd:schema>
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/valid.xml b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/valid.xml
new file mode 100644
index 0000000..a96bb38
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/Util/valid.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<root xmlns="http://example.com/schema">
+</root>
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/foo.xml b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/foo.xml
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Fixtures/foo.xml
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Loader/DelegatingLoaderTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Loader/DelegatingLoaderTest.php
new file mode 100644
index 0000000..7641e24
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Loader/DelegatingLoaderTest.php
@@ -0,0 +1,83 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Loader;
+
+use Symfony\Component\Config\Loader\LoaderResolver;
+use Symfony\Component\Config\Loader\DelegatingLoader;
+
+class DelegatingLoaderTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @covers Symfony\Component\Config\Loader\DelegatingLoader::__construct
+     */
+    public function testConstructor()
+    {
+        $loader = new DelegatingLoader($resolver = new LoaderResolver());
+        $this->assertTrue(true, '__construct() takes a loader resolver as its first argument');
+    }
+
+    /**
+     * @covers Symfony\Component\Config\Loader\DelegatingLoader::getResolver
+     * @covers Symfony\Component\Config\Loader\DelegatingLoader::setResolver
+     */
+    public function testGetSetResolver()
+    {
+        $resolver = new LoaderResolver();
+        $loader = new DelegatingLoader($resolver);
+        $this->assertSame($resolver, $loader->getResolver(), '->getResolver() gets the resolver loader');
+        $loader->setResolver($resolver = new LoaderResolver());
+        $this->assertSame($resolver, $loader->getResolver(), '->setResolver() sets the resolver loader');
+    }
+
+    /**
+     * @covers Symfony\Component\Config\Loader\DelegatingLoader::supports
+     */
+    public function testSupports()
+    {
+        $loader1 = $this->getMock('Symfony\Component\Config\Loader\LoaderInterface');
+        $loader1->expects($this->once())->method('supports')->will($this->returnValue(true));
+        $loader = new DelegatingLoader(new LoaderResolver(array($loader1)));
+        $this->assertTrue($loader->supports('foo.xml'), '->supports() returns true if the resource is loadable');
+
+        $loader1 = $this->getMock('Symfony\Component\Config\Loader\LoaderInterface');
+        $loader1->expects($this->once())->method('supports')->will($this->returnValue(false));
+        $loader = new DelegatingLoader(new LoaderResolver(array($loader1)));
+        $this->assertFalse($loader->supports('foo.foo'), '->supports() returns false if the resource is not loadable');
+    }
+
+    /**
+     * @covers Symfony\Component\Config\Loader\DelegatingLoader::load
+     */
+    public function testLoad()
+    {
+        $loader = $this->getMock('Symfony\Component\Config\Loader\LoaderInterface');
+        $loader->expects($this->once())->method('supports')->will($this->returnValue(true));
+        $loader->expects($this->once())->method('load');
+        $resolver = new LoaderResolver(array($loader));
+        $loader = new DelegatingLoader($resolver);
+
+        $loader->load('foo');
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Exception\FileLoaderLoadException
+     */
+    public function testLoadThrowsAnExceptionIfTheResourceCannotBeLoaded()
+    {
+        $loader = $this->getMock('Symfony\Component\Config\Loader\LoaderInterface');
+        $loader->expects($this->once())->method('supports')->will($this->returnValue(false));
+        $resolver = new LoaderResolver(array($loader));
+        $loader = new DelegatingLoader($resolver);
+
+        $loader->load('foo');
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Loader/FileLoaderTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Loader/FileLoaderTest.php
new file mode 100644
index 0000000..1442e94
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Loader/FileLoaderTest.php
@@ -0,0 +1,106 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Loader;
+
+use Symfony\Component\Config\Loader\FileLoader;
+use Symfony\Component\Config\Loader\LoaderResolver;
+
+class FileLoaderTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @covers Symfony\Component\Config\Loader\FileLoader
+     */
+    public function testImportWithFileLocatorDelegation()
+    {
+        $locatorMock = $this->getMock('Symfony\Component\Config\FileLocatorInterface');
+
+        $locatorMockForAdditionalLoader = $this->getMock('Symfony\Component\Config\FileLocatorInterface');
+        $locatorMockForAdditionalLoader->expects($this->any())->method('locate')->will($this->onConsecutiveCalls(
+                array('path/to/file1'),                    // Default
+                array('path/to/file1', 'path/to/file2'),   // First is imported
+                array('path/to/file1', 'path/to/file2'),   // Second is imported
+                array('path/to/file1'),                    // Exception
+                array('path/to/file1', 'path/to/file2')    // Exception
+                ));
+
+        $fileLoader = new TestFileLoader($locatorMock);
+        $fileLoader->setSupports(false);
+        $fileLoader->setCurrentDir('.');
+
+        $additionalLoader = new TestFileLoader($locatorMockForAdditionalLoader);
+        $additionalLoader->setCurrentDir('.');
+
+        $fileLoader->setResolver($loaderResolver = new LoaderResolver(array($fileLoader, $additionalLoader)));
+
+        // Default case
+        $this->assertSame('path/to/file1', $fileLoader->import('my_resource'));
+
+        // Check first file is imported if not already loading
+        $this->assertSame('path/to/file1', $fileLoader->import('my_resource'));
+
+        // Check second file is imported if first is already loading
+        $fileLoader->addLoading('path/to/file1');
+        $this->assertSame('path/to/file2', $fileLoader->import('my_resource'));
+
+        // Check exception throws if first (and only available) file is already loading
+        try {
+            $fileLoader->import('my_resource');
+            $this->fail('->import() throws a FileLoaderImportCircularReferenceException if the resource is already loading');
+        } catch (\Exception $e) {
+            $this->assertInstanceOf('Symfony\Component\Config\Exception\FileLoaderImportCircularReferenceException', $e, '->import() throws a FileLoaderImportCircularReferenceException if the resource is already loading');
+        }
+
+        // Check exception throws if all files are already loading
+        try {
+            $fileLoader->addLoading('path/to/file2');
+            $fileLoader->import('my_resource');
+            $this->fail('->import() throws a FileLoaderImportCircularReferenceException if the resource is already loading');
+        } catch (\Exception $e) {
+            $this->assertInstanceOf('Symfony\Component\Config\Exception\FileLoaderImportCircularReferenceException', $e, '->import() throws a FileLoaderImportCircularReferenceException if the resource is already loading');
+        }
+    }
+}
+
+class TestFileLoader extends FileLoader
+{
+    private $supports = true;
+
+    public function load($resource, $type = null)
+    {
+        return $resource;
+    }
+
+    public function supports($resource, $type = null)
+    {
+        return $this->supports;
+    }
+
+    public function addLoading($resource)
+    {
+        self::$loading[$resource] = true;
+    }
+
+    public function removeLoading($resource)
+    {
+        unset(self::$loading[$resource]);
+    }
+
+    public function clearLoading()
+    {
+        self::$loading = array();
+    }
+
+    public function setSupports($supports)
+    {
+        $this->supports = $supports;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Loader/LoaderResolverTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Loader/LoaderResolverTest.php
new file mode 100644
index 0000000..8ee276b
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Loader/LoaderResolverTest.php
@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Loader;
+
+use Symfony\Component\Config\Loader\LoaderResolver;
+
+class LoaderResolverTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @covers Symfony\Component\Config\Loader\LoaderResolver::__construct
+     */
+    public function testConstructor()
+    {
+        $resolver = new LoaderResolver(array(
+            $loader = $this->getMock('Symfony\Component\Config\Loader\LoaderInterface'),
+        ));
+
+        $this->assertEquals(array($loader), $resolver->getLoaders(), '__construct() takes an array of loaders as its first argument');
+    }
+
+    /**
+     * @covers Symfony\Component\Config\Loader\LoaderResolver::resolve
+     */
+    public function testResolve()
+    {
+        $loader = $this->getMock('Symfony\Component\Config\Loader\LoaderInterface');
+        $resolver = new LoaderResolver(array($loader));
+        $this->assertFalse($resolver->resolve('foo.foo'), '->resolve() returns false if no loader is able to load the resource');
+
+        $loader = $this->getMock('Symfony\Component\Config\Loader\LoaderInterface');
+        $loader->expects($this->once())->method('supports')->will($this->returnValue(true));
+        $resolver = new LoaderResolver(array($loader));
+        $this->assertEquals($loader, $resolver->resolve(function () {}), '->resolve() returns the loader for the given resource');
+    }
+
+    /**
+     * @covers Symfony\Component\Config\Loader\LoaderResolver::getLoaders
+     * @covers Symfony\Component\Config\Loader\LoaderResolver::addLoader
+     */
+    public function testLoaders()
+    {
+        $resolver = new LoaderResolver();
+        $resolver->addLoader($loader = $this->getMock('Symfony\Component\Config\Loader\LoaderInterface'));
+
+        $this->assertEquals(array($loader), $resolver->getLoaders(), 'addLoader() adds a loader');
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Loader/LoaderTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Loader/LoaderTest.php
new file mode 100644
index 0000000..e938a4b
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Loader/LoaderTest.php
@@ -0,0 +1,117 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Loader;
+
+use Symfony\Component\Config\Loader\Loader;
+
+class LoaderTest extends \PHPUnit_Framework_TestCase
+{
+    public function testGetSetResolver()
+    {
+        $resolver = $this->getMock('Symfony\Component\Config\Loader\LoaderResolverInterface');
+
+        $loader = new ProjectLoader1();
+        $loader->setResolver($resolver);
+
+        $this->assertSame($resolver, $loader->getResolver(), '->setResolver() sets the resolver loader');
+    }
+
+    public function testResolve()
+    {
+        $resolvedLoader = $this->getMock('Symfony\Component\Config\Loader\LoaderInterface');
+
+        $resolver = $this->getMock('Symfony\Component\Config\Loader\LoaderResolverInterface');
+        $resolver->expects($this->once())
+            ->method('resolve')
+            ->with('foo.xml')
+            ->will($this->returnValue($resolvedLoader));
+
+        $loader = new ProjectLoader1();
+        $loader->setResolver($resolver);
+
+        $this->assertSame($loader, $loader->resolve('foo.foo'), '->resolve() finds a loader');
+        $this->assertSame($resolvedLoader, $loader->resolve('foo.xml'), '->resolve() finds a loader');
+    }
+
+    /**
+     * @expectedException \Symfony\Component\Config\Exception\FileLoaderLoadException
+     */
+    public function testResolveWhenResolverCannotFindLoader()
+    {
+        $resolver = $this->getMock('Symfony\Component\Config\Loader\LoaderResolverInterface');
+        $resolver->expects($this->once())
+            ->method('resolve')
+            ->with('FOOBAR')
+            ->will($this->returnValue(false));
+
+        $loader = new ProjectLoader1();
+        $loader->setResolver($resolver);
+
+        $loader->resolve('FOOBAR');
+    }
+
+    public function testImport()
+    {
+        $resolvedLoader = $this->getMock('Symfony\Component\Config\Loader\LoaderInterface');
+        $resolvedLoader->expects($this->once())
+            ->method('load')
+            ->with('foo')
+            ->will($this->returnValue('yes'));
+
+        $resolver = $this->getMock('Symfony\Component\Config\Loader\LoaderResolverInterface');
+        $resolver->expects($this->once())
+            ->method('resolve')
+            ->with('foo')
+            ->will($this->returnValue($resolvedLoader));
+
+        $loader = new ProjectLoader1();
+        $loader->setResolver($resolver);
+
+        $this->assertEquals('yes', $loader->import('foo'));
+    }
+
+    public function testImportWithType()
+    {
+        $resolvedLoader = $this->getMock('Symfony\Component\Config\Loader\LoaderInterface');
+        $resolvedLoader->expects($this->once())
+            ->method('load')
+            ->with('foo', 'bar')
+            ->will($this->returnValue('yes'));
+
+        $resolver = $this->getMock('Symfony\Component\Config\Loader\LoaderResolverInterface');
+        $resolver->expects($this->once())
+            ->method('resolve')
+            ->with('foo', 'bar')
+            ->will($this->returnValue($resolvedLoader));
+
+        $loader = new ProjectLoader1();
+        $loader->setResolver($resolver);
+
+        $this->assertEquals('yes', $loader->import('foo', 'bar'));
+    }
+}
+
+class ProjectLoader1 extends Loader
+{
+    public function load($resource, $type = null)
+    {
+    }
+
+    public function supports($resource, $type = null)
+    {
+        return is_string($resource) && 'foo' === pathinfo($resource, PATHINFO_EXTENSION);
+    }
+
+    public function getType()
+    {
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Resource/DirectoryResourceTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Resource/DirectoryResourceTest.php
new file mode 100644
index 0000000..d78e0cf
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Resource/DirectoryResourceTest.php
@@ -0,0 +1,152 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Resource;
+
+use Symfony\Component\Config\Resource\DirectoryResource;
+
+class DirectoryResourceTest extends \PHPUnit_Framework_TestCase
+{
+    protected $directory;
+
+    protected function setUp()
+    {
+        $this->directory = sys_get_temp_dir().'/symfonyDirectoryIterator';
+        if (!file_exists($this->directory)) {
+            mkdir($this->directory);
+        }
+        touch($this->directory.'/tmp.xml');
+    }
+
+    protected function tearDown()
+    {
+        if (!is_dir($this->directory)) {
+            return;
+        }
+        $this->removeDirectory($this->directory);
+    }
+
+    protected function removeDirectory($directory)
+    {
+        $iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($directory), \RecursiveIteratorIterator::CHILD_FIRST);
+        foreach ($iterator as $path) {
+            if (preg_match('#[/\\\\]\.\.?$#', $path->__toString())) {
+                continue;
+            }
+            if ($path->isDir()) {
+                rmdir($path->__toString());
+            } else {
+                unlink($path->__toString());
+            }
+        }
+        rmdir($directory);
+    }
+
+    public function testGetResource()
+    {
+        $resource = new DirectoryResource($this->directory);
+        $this->assertSame($this->directory, $resource->getResource(), '->getResource() returns the path to the resource');
+        $this->assertSame($this->directory, (string) $resource, '->__toString() returns the path to the resource');
+    }
+
+    public function testGetPattern()
+    {
+        $resource = new DirectoryResource('foo', 'bar');
+        $this->assertEquals('bar', $resource->getPattern());
+    }
+
+    public function testIsFresh()
+    {
+        $resource = new DirectoryResource($this->directory);
+        $this->assertTrue($resource->isFresh(time() + 10), '->isFresh() returns true if the resource has not changed');
+        $this->assertFalse($resource->isFresh(time() - 86400), '->isFresh() returns false if the resource has been updated');
+
+        $resource = new DirectoryResource('/____foo/foobar'.rand(1, 999999));
+        $this->assertFalse($resource->isFresh(time()), '->isFresh() returns false if the resource does not exist');
+    }
+
+    public function testIsFreshUpdateFile()
+    {
+        $resource = new DirectoryResource($this->directory);
+        touch($this->directory.'/tmp.xml', time() + 20);
+        $this->assertFalse($resource->isFresh(time() + 10), '->isFresh() returns false if an existing file is modified');
+    }
+
+    public function testIsFreshNewFile()
+    {
+        $resource = new DirectoryResource($this->directory);
+        touch($this->directory.'/new.xml', time() + 20);
+        $this->assertFalse($resource->isFresh(time() + 10), '->isFresh() returns false if a new file is added');
+    }
+
+    public function testIsFreshDeleteFile()
+    {
+        $resource = new DirectoryResource($this->directory);
+        unlink($this->directory.'/tmp.xml');
+        $this->assertFalse($resource->isFresh(time()), '->isFresh() returns false if an existing file is removed');
+    }
+
+    public function testIsFreshDeleteDirectory()
+    {
+        $resource = new DirectoryResource($this->directory);
+        $this->removeDirectory($this->directory);
+        $this->assertFalse($resource->isFresh(time()), '->isFresh() returns false if the whole resource is removed');
+    }
+
+    public function testIsFreshCreateFileInSubdirectory()
+    {
+        $subdirectory = $this->directory.'/subdirectory';
+        mkdir($subdirectory);
+
+        $resource = new DirectoryResource($this->directory);
+        $this->assertTrue($resource->isFresh(time() + 10), '->isFresh() returns true if an unmodified subdirectory exists');
+
+        touch($subdirectory.'/newfile.xml', time() + 20);
+        $this->assertFalse($resource->isFresh(time() + 10), '->isFresh() returns false if a new file in a subdirectory is added');
+    }
+
+    public function testIsFreshModifySubdirectory()
+    {
+        $resource = new DirectoryResource($this->directory);
+
+        $subdirectory = $this->directory.'/subdirectory';
+        mkdir($subdirectory);
+        touch($subdirectory, time() + 20);
+
+        $this->assertFalse($resource->isFresh(time() + 10), '->isFresh() returns false if a subdirectory is modified (e.g. a file gets deleted)');
+    }
+
+    public function testFilterRegexListNoMatch()
+    {
+        $resource = new DirectoryResource($this->directory, '/\.(foo|xml)$/');
+
+        touch($this->directory.'/new.bar', time() + 20);
+        $this->assertTrue($resource->isFresh(time() + 10), '->isFresh() returns true if a new file not matching the filter regex is created');
+    }
+
+    public function testFilterRegexListMatch()
+    {
+        $resource = new DirectoryResource($this->directory, '/\.(foo|xml)$/');
+
+        touch($this->directory.'/new.xml', time() + 20);
+        $this->assertFalse($resource->isFresh(time() + 10), '->isFresh() returns false if an new file matching the filter regex is created ');
+    }
+
+    public function testSerializeUnserialize()
+    {
+        $resource = new DirectoryResource($this->directory, '/\.(foo|xml)$/');
+
+        $unserialized = unserialize(serialize($resource));
+
+        $this->assertSame($this->directory, $resource->getResource());
+        $this->assertSame('/\.(foo|xml)$/', $resource->getPattern());
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Resource/FileResourceTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Resource/FileResourceTest.php
new file mode 100644
index 0000000..d152806
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Resource/FileResourceTest.php
@@ -0,0 +1,61 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Resource;
+
+use Symfony\Component\Config\Resource\FileResource;
+
+class FileResourceTest extends \PHPUnit_Framework_TestCase
+{
+    protected $resource;
+    protected $file;
+    protected $time;
+
+    protected function setUp()
+    {
+        $this->file = realpath(sys_get_temp_dir()).'/tmp.xml';
+        $this->time = time();
+        touch($this->file, $this->time);
+        $this->resource = new FileResource($this->file);
+    }
+
+    protected function tearDown()
+    {
+        unlink($this->file);
+    }
+
+    public function testGetResource()
+    {
+        $this->assertSame(realpath($this->file), $this->resource->getResource(), '->getResource() returns the path to the resource');
+    }
+
+    public function testToString()
+    {
+        $this->assertSame(realpath($this->file), (string) $this->resource);
+    }
+
+    public function testIsFresh()
+    {
+        $this->assertTrue($this->resource->isFresh($this->time), '->isFresh() returns true if the resource has not changed in same second');
+        $this->assertTrue($this->resource->isFresh($this->time + 10), '->isFresh() returns true if the resource has not changed');
+        $this->assertFalse($this->resource->isFresh($this->time - 86400), '->isFresh() returns false if the resource has been updated');
+
+        $resource = new FileResource('/____foo/foobar'.rand(1, 999999));
+        $this->assertFalse($resource->isFresh($this->time), '->isFresh() returns false if the resource does not exist');
+    }
+
+    public function testSerializeUnserialize()
+    {
+        $unserialized = unserialize(serialize($this->resource));
+
+        $this->assertSame(realpath($this->file), $this->resource->getResource());
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Tests/Util/XmlUtilsTest.php b/vendor/symfony/config/Symfony/Component/Config/Tests/Util/XmlUtilsTest.php
new file mode 100644
index 0000000..f9d3d14
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Tests/Util/XmlUtilsTest.php
@@ -0,0 +1,197 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Loader;
+
+use Symfony\Component\Config\Util\XmlUtils;
+
+class XmlUtilsTest extends \PHPUnit_Framework_TestCase
+{
+    public function testLoadFile()
+    {
+        $fixtures = __DIR__.'/../Fixtures/Util/';
+
+        try {
+            XmlUtils::loadFile($fixtures.'invalid.xml');
+            $this->fail();
+        } catch (\InvalidArgumentException $e) {
+            $this->assertContains('ERROR 77', $e->getMessage());
+        }
+
+        try {
+            XmlUtils::loadFile($fixtures.'document_type.xml');
+            $this->fail();
+        } catch (\InvalidArgumentException $e) {
+            $this->assertContains('Document types are not allowed', $e->getMessage());
+        }
+
+        try {
+            XmlUtils::loadFile($fixtures.'invalid_schema.xml', $fixtures.'schema.xsd');
+            $this->fail();
+        } catch (\InvalidArgumentException $e) {
+            $this->assertContains('ERROR 1845', $e->getMessage());
+        }
+
+        try {
+            XmlUtils::loadFile($fixtures.'invalid_schema.xml', 'invalid_callback_or_file');
+            $this->fail();
+        } catch (\InvalidArgumentException $e) {
+            $this->assertContains('XSD file or callable', $e->getMessage());
+        }
+
+        $mock = $this->getMock(__NAMESPACE__.'\Validator');
+        $mock->expects($this->exactly(2))->method('validate')->will($this->onConsecutiveCalls(false, true));
+
+        try {
+            XmlUtils::loadFile($fixtures.'valid.xml', array($mock, 'validate'));
+            $this->fail();
+        } catch (\InvalidArgumentException $e) {
+            $this->assertContains('is not valid', $e->getMessage());
+        }
+
+        $this->assertInstanceOf('DOMDocument', XmlUtils::loadFile($fixtures.'valid.xml', array($mock, 'validate')));
+        $this->assertSame(array(), libxml_get_errors());
+    }
+
+    public function testLoadFileWithInternalErrorsEnabled()
+    {
+        libxml_use_internal_errors(true);
+
+        $this->assertSame(array(), libxml_get_errors());
+        $this->assertInstanceOf('DOMDocument', XmlUtils::loadFile(__DIR__.'/../Fixtures/Util/invalid_schema.xml'));
+        $this->assertSame(array(), libxml_get_errors());
+    }
+
+    /**
+     * @dataProvider getDataForConvertDomToArray
+     */
+    public function testConvertDomToArray($expected, $xml, $root = false, $checkPrefix = true)
+    {
+        $dom = new \DOMDocument();
+        $dom->loadXML($root ? $xml : '<root>'.$xml.'</root>');
+
+        $this->assertSame($expected, XmlUtils::convertDomElementToArray($dom->documentElement, $checkPrefix));
+    }
+
+    public function getDataForConvertDomToArray()
+    {
+        return array(
+            array(null, ''),
+            array('bar', 'bar'),
+            array(array('bar' => 'foobar'), '<foo bar="foobar" />', true),
+            array(array('foo' => null), '<foo />'),
+            array(array('foo' => 'bar'), '<foo>bar</foo>'),
+            array(array('foo' => array('foo' => 'bar')), '<foo foo="bar"/>'),
+            array(array('foo' => array('foo' => 0)), '<foo><foo>0</foo></foo>'),
+            array(array('foo' => array('foo' => 'bar')), '<foo><foo>bar</foo></foo>'),
+            array(array('foo' => array('foo' => 'bar', 'value' => 'text')), '<foo foo="bar">text</foo>'),
+            array(array('foo' => array('attr' => 'bar', 'foo' => 'text')), '<foo attr="bar"><foo>text</foo></foo>'),
+            array(array('foo' => array('bar', 'text')), '<foo>bar</foo><foo>text</foo>'),
+            array(array('foo' => array(array('foo' => 'bar'), array('foo' => 'text'))), '<foo foo="bar"/><foo foo="text" />'),
+            array(array('foo' => array('foo' => array('bar', 'text'))), '<foo foo="bar"><foo>text</foo></foo>'),
+            array(array('foo' => 'bar'), '<foo><!-- Comment -->bar</foo>'),
+            array(array('foo' => 'text'), '<foo xmlns:h="http://www.example.org/bar" h:bar="bar">text</foo>'),
+            array(array('foo' => array('bar' => 'bar', 'value' => 'text')), '<foo xmlns:h="http://www.example.org/bar" h:bar="bar">text</foo>', false, false),
+            array(array('attr' => 1, 'b' => 'hello'), '<foo:a xmlns:foo="http://www.example.org/foo" xmlns:h="http://www.example.org/bar" attr="1" h:bar="bar"><foo:b>hello</foo:b><h:c>2</h:c></foo:a>', true),
+        );
+    }
+
+    /**
+     * @dataProvider getDataForPhpize
+     */
+    public function testPhpize($expected, $value)
+    {
+        $this->assertSame($expected, XmlUtils::phpize($value));
+    }
+
+    public function getDataForPhpize()
+    {
+        return array(
+            array('', ''),
+            array(null, 'null'),
+            array(true, 'true'),
+            array(false, 'false'),
+            array(null, 'Null'),
+            array(true, 'True'),
+            array(false, 'False'),
+            array(0, '0'),
+            array(1, '1'),
+            array(-1, '-1'),
+            array(0777, '0777'),
+            array(255, '0xFF'),
+            array(100.0, '1e2'),
+            array(-120.0, '-1.2E2'),
+            array(-10100.1, '-10100.1'),
+            array('-10,100.1', '-10,100.1'),
+            array('1234 5678 9101 1121 3141', '1234 5678 9101 1121 3141'),
+            array('1,2,3,4', '1,2,3,4'),
+            array('11,22,33,44', '11,22,33,44'),
+            array('11,222,333,4', '11,222,333,4'),
+            array('1,222,333,444', '1,222,333,444'),
+            array('11,222,333,444', '11,222,333,444'),
+            array('111,222,333,444', '111,222,333,444'),
+            array('1111,2222,3333,4444,5555', '1111,2222,3333,4444,5555'),
+            array('foo', 'foo'),
+            array(6, '0b0110'),
+        );
+    }
+
+    public function testLoadEmptyXmlFile()
+    {
+        $file = __DIR__.'/../Fixtures/foo.xml';
+        $this->setExpectedException('InvalidArgumentException', 'File '.$file.' does not contain valid XML, it is empty.');
+        XmlUtils::loadFile($file);
+    }
+
+    // test for issue https://github.com/symfony/symfony/issues/9731
+    public function testLoadWrongEmptyXMLWithErrorHandler()
+    {
+        $originalDisableEntities = libxml_disable_entity_loader(false);
+        $errorReporting = error_reporting(-1);
+
+        set_error_handler(function ($errno, $errstr) {
+            throw new \Exception($errstr, $errno);
+        });
+
+        $file = __DIR__.'/../Fixtures/foo.xml';
+        try {
+            try {
+                XmlUtils::loadFile($file);
+                $this->fail('An exception should have been raised');
+            } catch (\InvalidArgumentException $e) {
+                $this->assertEquals(sprintf('File %s does not contain valid XML, it is empty.', $file), $e->getMessage());
+            }
+        } catch (\Exception $e) {
+            restore_error_handler();
+            error_reporting($errorReporting);
+
+            throw $e;
+        }
+
+        restore_error_handler();
+        error_reporting($errorReporting);
+
+        $disableEntities = libxml_disable_entity_loader(true);
+        libxml_disable_entity_loader($disableEntities);
+
+        libxml_disable_entity_loader($originalDisableEntities);
+
+        $this->assertFalse($disableEntities);
+
+        // should not throw an exception
+        XmlUtils::loadFile(__DIR__.'/../Fixtures/Util/valid.xml', __DIR__.'/../Fixtures/Util/schema.xsd');
+    }
+}
+
+interface Validator
+{
+    public function validate();
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/Util/XmlUtils.php b/vendor/symfony/config/Symfony/Component/Config/Util/XmlUtils.php
new file mode 100644
index 0000000..2ef881d
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/Util/XmlUtils.php
@@ -0,0 +1,238 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Util;
+
+/**
+ * XMLUtils is a bunch of utility methods to XML operations.
+ *
+ * This class contains static methods only and is not meant to be instantiated.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Martin Hasoň <martin.hason@gmail.com>
+ */
+class XmlUtils
+{
+    /**
+     * This class should not be instantiated.
+     */
+    private function __construct()
+    {
+    }
+
+    /**
+     * Loads an XML file.
+     *
+     * @param string               $file             An XML file path
+     * @param string|callable|null $schemaOrCallable An XSD schema file path, a callable, or null to disable validation
+     *
+     * @return \DOMDocument
+     *
+     * @throws \InvalidArgumentException When loading of XML file returns error
+     */
+    public static function loadFile($file, $schemaOrCallable = null)
+    {
+        $content = @file_get_contents($file);
+        if ('' === trim($content)) {
+            throw new \InvalidArgumentException(sprintf('File %s does not contain valid XML, it is empty.', $file));
+        }
+
+        $internalErrors = libxml_use_internal_errors(true);
+        $disableEntities = libxml_disable_entity_loader(true);
+        libxml_clear_errors();
+
+        $dom = new \DOMDocument();
+        $dom->validateOnParse = true;
+        if (!$dom->loadXML($content, LIBXML_NONET | (defined('LIBXML_COMPACT') ? LIBXML_COMPACT : 0))) {
+            libxml_disable_entity_loader($disableEntities);
+
+            throw new \InvalidArgumentException(implode("\n", static::getXmlErrors($internalErrors)));
+        }
+
+        $dom->normalizeDocument();
+
+        libxml_use_internal_errors($internalErrors);
+        libxml_disable_entity_loader($disableEntities);
+
+        foreach ($dom->childNodes as $child) {
+            if ($child->nodeType === XML_DOCUMENT_TYPE_NODE) {
+                throw new \InvalidArgumentException('Document types are not allowed.');
+            }
+        }
+
+        if (null !== $schemaOrCallable) {
+            $internalErrors = libxml_use_internal_errors(true);
+            libxml_clear_errors();
+
+            $e = null;
+            if (is_callable($schemaOrCallable)) {
+                try {
+                    $valid = call_user_func($schemaOrCallable, $dom, $internalErrors);
+                } catch (\Exception $e) {
+                    $valid = false;
+                }
+            } elseif (!is_array($schemaOrCallable) && is_file((string) $schemaOrCallable)) {
+                $schemaSource = file_get_contents((string) $schemaOrCallable);
+                $valid = @$dom->schemaValidateSource($schemaSource);
+            } else {
+                libxml_use_internal_errors($internalErrors);
+
+                throw new \InvalidArgumentException('The schemaOrCallable argument has to be a valid path to XSD file or callable.');
+            }
+
+            if (!$valid) {
+                $messages = static::getXmlErrors($internalErrors);
+                if (empty($messages)) {
+                    $messages = array(sprintf('The XML file "%s" is not valid.', $file));
+                }
+                throw new \InvalidArgumentException(implode("\n", $messages), 0, $e);
+            }
+        }
+
+        libxml_clear_errors();
+        libxml_use_internal_errors($internalErrors);
+
+        return $dom;
+    }
+
+    /**
+     * Converts a \DomElement object to a PHP array.
+     *
+     * The following rules applies during the conversion:
+     *
+     *  * Each tag is converted to a key value or an array
+     *    if there is more than one "value"
+     *
+     *  * The content of a tag is set under a "value" key (<foo>bar</foo>)
+     *    if the tag also has some nested tags
+     *
+     *  * The attributes are converted to keys (<foo foo="bar"/>)
+     *
+     *  * The nested-tags are converted to keys (<foo><foo>bar</foo></foo>)
+     *
+     * @param \DomElement $element     A \DomElement instance
+     * @param bool        $checkPrefix Check prefix in an element or an attribute name
+     *
+     * @return array A PHP array
+     */
+    public static function convertDomElementToArray(\DomElement $element, $checkPrefix = true)
+    {
+        $prefix = (string) $element->prefix;
+        $empty = true;
+        $config = array();
+        foreach ($element->attributes as $name => $node) {
+            if ($checkPrefix && !in_array((string) $node->prefix, array('', $prefix), true)) {
+                continue;
+            }
+            $config[$name] = static::phpize($node->value);
+            $empty = false;
+        }
+
+        $nodeValue = false;
+        foreach ($element->childNodes as $node) {
+            if ($node instanceof \DOMText) {
+                if ('' !== trim($node->nodeValue)) {
+                    $nodeValue = trim($node->nodeValue);
+                    $empty = false;
+                }
+            } elseif ($checkPrefix && $prefix != (string) $node->prefix) {
+                continue;
+            } elseif (!$node instanceof \DOMComment) {
+                $value = static::convertDomElementToArray($node, $checkPrefix);
+
+                $key = $node->localName;
+                if (isset($config[$key])) {
+                    if (!is_array($config[$key]) || !is_int(key($config[$key]))) {
+                        $config[$key] = array($config[$key]);
+                    }
+                    $config[$key][] = $value;
+                } else {
+                    $config[$key] = $value;
+                }
+
+                $empty = false;
+            }
+        }
+
+        if (false !== $nodeValue) {
+            $value = static::phpize($nodeValue);
+            if (count($config)) {
+                $config['value'] = $value;
+            } else {
+                $config = $value;
+            }
+        }
+
+        return !$empty ? $config : null;
+    }
+
+    /**
+     * Converts an xml value to a PHP type.
+     *
+     * @param mixed $value
+     *
+     * @return mixed
+     */
+    public static function phpize($value)
+    {
+        $value = (string) $value;
+        $lowercaseValue = strtolower($value);
+
+        switch (true) {
+            case 'null' === $lowercaseValue:
+                return;
+            case ctype_digit($value):
+                $raw = $value;
+                $cast = (int) $value;
+
+                return '0' == $value[0] ? octdec($value) : (((string) $raw === (string) $cast) ? $cast : $raw);
+            case isset($value[1]) && '-' === $value[0] && ctype_digit(substr($value, 1)):
+                $raw = $value;
+                $cast = intval($value);
+
+                return '0' == $value[1] ? octdec($value) : (((string) $raw === (string) $cast) ? $cast : $raw);
+            case 'true' === $lowercaseValue:
+                return true;
+            case 'false' === $lowercaseValue:
+                return false;
+            case isset($value[1]) && '0b' == $value[0].$value[1]:
+                return bindec($value);
+            case is_numeric($value):
+                return '0x' === $value[0].$value[1] ? hexdec($value) : (float) $value;
+            case preg_match('/^0x[0-9a-f]++$/i', $value):
+                return hexdec($value);
+            case preg_match('/^(-|\+)?[0-9]+(\.[0-9]+)?$/', $value):
+                return (float) $value;
+            default:
+                return $value;
+        }
+    }
+
+    protected static function getXmlErrors($internalErrors)
+    {
+        $errors = array();
+        foreach (libxml_get_errors() as $error) {
+            $errors[] = sprintf('[%s %s] %s (in %s - line %d, column %d)',
+                LIBXML_ERR_WARNING == $error->level ? 'WARNING' : 'ERROR',
+                $error->code,
+                trim($error->message),
+                $error->file ?: 'n/a',
+                $error->line,
+                $error->column
+            );
+        }
+
+        libxml_clear_errors();
+        libxml_use_internal_errors($internalErrors);
+
+        return $errors;
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/composer.json b/vendor/symfony/config/Symfony/Component/Config/composer.json
new file mode 100644
index 0000000..3b2542a
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/composer.json
@@ -0,0 +1,35 @@
+{
+    "name": "symfony/config",
+    "type": "library",
+    "description": "Symfony Config Component",
+    "keywords": [],
+    "homepage": "http://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Fabien Potencier",
+            "email": "fabien@symfony.com"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "http://symfony.com/contributors"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.3",
+        "symfony/filesystem": "~2.3"
+    },
+    "require-dev": {
+        "symfony/phpunit-bridge": "~2.7"
+    },
+    "autoload": {
+        "psr-0": { "Symfony\\Component\\Config\\": "" }
+    },
+    "target-dir": "Symfony/Component/Config",
+    "minimum-stability": "dev",
+    "extra": {
+        "branch-alias": {
+            "dev-master": "2.6-dev"
+        }
+    }
+}
diff --git a/vendor/symfony/config/Symfony/Component/Config/phpunit.xml.dist b/vendor/symfony/config/Symfony/Component/Config/phpunit.xml.dist
new file mode 100644
index 0000000..2156534
--- /dev/null
+++ b/vendor/symfony/config/Symfony/Component/Config/phpunit.xml.dist
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/4.1/phpunit.xsd"
+         backupGlobals="false"
+         colors="true"
+         bootstrap="vendor/autoload.php"
+>
+    <php>
+        <ini name="error_reporting" value="-1" />
+    </php>
+    <testsuites>
+        <testsuite name="Symfony Config Component Test Suite">
+            <directory>./Tests/</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist>
+            <directory>./</directory>
+            <exclude>
+                <directory>./Resources</directory>
+                <directory>./Tests</directory>
+                <directory>./vendor</directory>
+            </exclude>
+        </whitelist>
+    </filter>
+</phpunit>