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diff --git a/vendor/symfony/finder/Finder.php b/vendor/symfony/finder/Finder.php
new file mode 100644
index 000000000..e6a5442f1
--- /dev/null
+++ b/vendor/symfony/finder/Finder.php
@@ -0,0 +1,905 @@
+<?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\Finder;
+
+use Symfony\Component\Finder\Adapter\AdapterInterface;
+use Symfony\Component\Finder\Adapter\GnuFindAdapter;
+use Symfony\Component\Finder\Adapter\BsdFindAdapter;
+use Symfony\Component\Finder\Adapter\PhpAdapter;
+use Symfony\Component\Finder\Comparator\DateComparator;
+use Symfony\Component\Finder\Comparator\NumberComparator;
+use Symfony\Component\Finder\Exception\ExceptionInterface;
+use Symfony\Component\Finder\Iterator\CustomFilterIterator;
+use Symfony\Component\Finder\Iterator\DateRangeFilterIterator;
+use Symfony\Component\Finder\Iterator\DepthRangeFilterIterator;
+use Symfony\Component\Finder\Iterator\ExcludeDirectoryFilterIterator;
+use Symfony\Component\Finder\Iterator\FilecontentFilterIterator;
+use Symfony\Component\Finder\Iterator\FilenameFilterIterator;
+use Symfony\Component\Finder\Iterator\SizeRangeFilterIterator;
+use Symfony\Component\Finder\Iterator\SortableIterator;
+
+/**
+ * Finder allows to build rules to find files and directories.
+ *
+ * It is a thin wrapper around several specialized iterator classes.
+ *
+ * All rules may be invoked several times.
+ *
+ * All methods return the current Finder object to allow easy chaining:
+ *
+ * $finder = Finder::create()->files()->name('*.php')->in(__DIR__);
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Finder implements \IteratorAggregate, \Countable
+{
+    const IGNORE_VCS_FILES = 1;
+    const IGNORE_DOT_FILES = 2;
+
+    private $mode = 0;
+    private $names = array();
+    private $notNames = array();
+    private $exclude = array();
+    private $filters = array();
+    private $depths = array();
+    private $sizes = array();
+    private $followLinks = false;
+    private $sort = false;
+    private $ignore = 0;
+    private $dirs = array();
+    private $dates = array();
+    private $iterators = array();
+    private $contains = array();
+    private $notContains = array();
+    private $adapters = null;
+    private $paths = array();
+    private $notPaths = array();
+    private $ignoreUnreadableDirs = false;
+
+    private static $vcsPatterns = array('.svn', '_svn', 'CVS', '_darcs', '.arch-params', '.monotone', '.bzr', '.git', '.hg');
+
+    /**
+     * Constructor.
+     */
+    public function __construct()
+    {
+        $this->ignore = static::IGNORE_VCS_FILES | static::IGNORE_DOT_FILES;
+    }
+
+    /**
+     * Creates a new Finder.
+     *
+     * @return static
+     */
+    public static function create()
+    {
+        return new static();
+    }
+
+    /**
+     * Registers a finder engine implementation.
+     *
+     * @param AdapterInterface $adapter  An adapter instance
+     * @param int              $priority Highest is selected first
+     *
+     * @return $this
+     *
+     * @deprecated since 2.8, to be removed in 3.0.
+     */
+    public function addAdapter(AdapterInterface $adapter, $priority = 0)
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+        $this->initDefaultAdapters();
+
+        $this->adapters[$adapter->getName()] = array(
+            'adapter' => $adapter,
+            'priority' => $priority,
+            'selected' => false,
+        );
+
+        return $this->sortAdapters();
+    }
+
+    /**
+     * Sets the selected adapter to the best one according to the current platform the code is run on.
+     *
+     * @return $this
+     *
+     * @deprecated since 2.8, to be removed in 3.0.
+     */
+    public function useBestAdapter()
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+        $this->initDefaultAdapters();
+
+        $this->resetAdapterSelection();
+
+        return $this->sortAdapters();
+    }
+
+    /**
+     * Selects the adapter to use.
+     *
+     * @param string $name
+     *
+     * @return $this
+     *
+     * @throws \InvalidArgumentException
+     *
+     * @deprecated since 2.8, to be removed in 3.0.
+     */
+    public function setAdapter($name)
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+        $this->initDefaultAdapters();
+
+        if (!isset($this->adapters[$name])) {
+            throw new \InvalidArgumentException(sprintf('Adapter "%s" does not exist.', $name));
+        }
+
+        $this->resetAdapterSelection();
+        $this->adapters[$name]['selected'] = true;
+
+        return $this->sortAdapters();
+    }
+
+    /**
+     * Removes all adapters registered in the finder.
+     *
+     * @return $this
+     *
+     * @deprecated since 2.8, to be removed in 3.0.
+     */
+    public function removeAdapters()
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+        $this->adapters = array();
+
+        return $this;
+    }
+
+    /**
+     * Returns registered adapters ordered by priority without extra information.
+     *
+     * @return AdapterInterface[]
+     *
+     * @deprecated since 2.8, to be removed in 3.0.
+     */
+    public function getAdapters()
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+        $this->initDefaultAdapters();
+
+        return array_values(array_map(function (array $adapter) {
+            return $adapter['adapter'];
+        }, $this->adapters));
+    }
+
+    /**
+     * Restricts the matching to directories only.
+     *
+     * @return $this
+     */
+    public function directories()
+    {
+        $this->mode = Iterator\FileTypeFilterIterator::ONLY_DIRECTORIES;
+
+        return $this;
+    }
+
+    /**
+     * Restricts the matching to files only.
+     *
+     * @return $this
+     */
+    public function files()
+    {
+        $this->mode = Iterator\FileTypeFilterIterator::ONLY_FILES;
+
+        return $this;
+    }
+
+    /**
+     * Adds tests for the directory depth.
+     *
+     * Usage:
+     *
+     *   $finder->depth('> 1') // the Finder will start matching at level 1.
+     *   $finder->depth('< 3') // the Finder will descend at most 3 levels of directories below the starting point.
+     *
+     * @param string|int $level The depth level expression
+     *
+     * @return $this
+     *
+     * @see DepthRangeFilterIterator
+     * @see NumberComparator
+     */
+    public function depth($level)
+    {
+        $this->depths[] = new Comparator\NumberComparator($level);
+
+        return $this;
+    }
+
+    /**
+     * Adds tests for file dates (last modified).
+     *
+     * The date must be something that strtotime() is able to parse:
+     *
+     *   $finder->date('since yesterday');
+     *   $finder->date('until 2 days ago');
+     *   $finder->date('> now - 2 hours');
+     *   $finder->date('>= 2005-10-15');
+     *
+     * @param string $date A date range string
+     *
+     * @return $this
+     *
+     * @see strtotime
+     * @see DateRangeFilterIterator
+     * @see DateComparator
+     */
+    public function date($date)
+    {
+        $this->dates[] = new Comparator\DateComparator($date);
+
+        return $this;
+    }
+
+    /**
+     * Adds rules that files must match.
+     *
+     * You can use patterns (delimited with / sign), globs or simple strings.
+     *
+     * $finder->name('*.php')
+     * $finder->name('/\.php$/') // same as above
+     * $finder->name('test.php')
+     *
+     * @param string $pattern A pattern (a regexp, a glob, or a string)
+     *
+     * @return $this
+     *
+     * @see FilenameFilterIterator
+     */
+    public function name($pattern)
+    {
+        $this->names[] = $pattern;
+
+        return $this;
+    }
+
+    /**
+     * Adds rules that files must not match.
+     *
+     * @param string $pattern A pattern (a regexp, a glob, or a string)
+     *
+     * @return $this
+     *
+     * @see FilenameFilterIterator
+     */
+    public function notName($pattern)
+    {
+        $this->notNames[] = $pattern;
+
+        return $this;
+    }
+
+    /**
+     * Adds tests that file contents must match.
+     *
+     * Strings or PCRE patterns can be used:
+     *
+     * $finder->contains('Lorem ipsum')
+     * $finder->contains('/Lorem ipsum/i')
+     *
+     * @param string $pattern A pattern (string or regexp)
+     *
+     * @return $this
+     *
+     * @see FilecontentFilterIterator
+     */
+    public function contains($pattern)
+    {
+        $this->contains[] = $pattern;
+
+        return $this;
+    }
+
+    /**
+     * Adds tests that file contents must not match.
+     *
+     * Strings or PCRE patterns can be used:
+     *
+     * $finder->notContains('Lorem ipsum')
+     * $finder->notContains('/Lorem ipsum/i')
+     *
+     * @param string $pattern A pattern (string or regexp)
+     *
+     * @return $this
+     *
+     * @see FilecontentFilterIterator
+     */
+    public function notContains($pattern)
+    {
+        $this->notContains[] = $pattern;
+
+        return $this;
+    }
+
+    /**
+     * Adds rules that filenames must match.
+     *
+     * You can use patterns (delimited with / sign) or simple strings.
+     *
+     * $finder->path('some/special/dir')
+     * $finder->path('/some\/special\/dir/') // same as above
+     *
+     * Use only / as dirname separator.
+     *
+     * @param string $pattern A pattern (a regexp or a string)
+     *
+     * @return $this
+     *
+     * @see FilenameFilterIterator
+     */
+    public function path($pattern)
+    {
+        $this->paths[] = $pattern;
+
+        return $this;
+    }
+
+    /**
+     * Adds rules that filenames must not match.
+     *
+     * You can use patterns (delimited with / sign) or simple strings.
+     *
+     * $finder->notPath('some/special/dir')
+     * $finder->notPath('/some\/special\/dir/') // same as above
+     *
+     * Use only / as dirname separator.
+     *
+     * @param string $pattern A pattern (a regexp or a string)
+     *
+     * @return $this
+     *
+     * @see FilenameFilterIterator
+     */
+    public function notPath($pattern)
+    {
+        $this->notPaths[] = $pattern;
+
+        return $this;
+    }
+
+    /**
+     * Adds tests for file sizes.
+     *
+     * $finder->size('> 10K');
+     * $finder->size('<= 1Ki');
+     * $finder->size(4);
+     *
+     * @param string|int $size A size range string or an integer
+     *
+     * @return $this
+     *
+     * @see SizeRangeFilterIterator
+     * @see NumberComparator
+     */
+    public function size($size)
+    {
+        $this->sizes[] = new Comparator\NumberComparator($size);
+
+        return $this;
+    }
+
+    /**
+     * Excludes directories.
+     *
+     * @param string|array $dirs A directory path or an array of directories
+     *
+     * @return $this
+     *
+     * @see ExcludeDirectoryFilterIterator
+     */
+    public function exclude($dirs)
+    {
+        $this->exclude = array_merge($this->exclude, (array) $dirs);
+
+        return $this;
+    }
+
+    /**
+     * Excludes "hidden" directories and files (starting with a dot).
+     *
+     * @param bool $ignoreDotFiles Whether to exclude "hidden" files or not
+     *
+     * @return $this
+     *
+     * @see ExcludeDirectoryFilterIterator
+     */
+    public function ignoreDotFiles($ignoreDotFiles)
+    {
+        if ($ignoreDotFiles) {
+            $this->ignore |= static::IGNORE_DOT_FILES;
+        } else {
+            $this->ignore &= ~static::IGNORE_DOT_FILES;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Forces the finder to ignore version control directories.
+     *
+     * @param bool $ignoreVCS Whether to exclude VCS files or not
+     *
+     * @return $this
+     *
+     * @see ExcludeDirectoryFilterIterator
+     */
+    public function ignoreVCS($ignoreVCS)
+    {
+        if ($ignoreVCS) {
+            $this->ignore |= static::IGNORE_VCS_FILES;
+        } else {
+            $this->ignore &= ~static::IGNORE_VCS_FILES;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Adds VCS patterns.
+     *
+     * @see ignoreVCS()
+     *
+     * @param string|string[] $pattern VCS patterns to ignore
+     */
+    public static function addVCSPattern($pattern)
+    {
+        foreach ((array) $pattern as $p) {
+            self::$vcsPatterns[] = $p;
+        }
+
+        self::$vcsPatterns = array_unique(self::$vcsPatterns);
+    }
+
+    /**
+     * Sorts files and directories by an anonymous function.
+     *
+     * The anonymous function receives two \SplFileInfo instances to compare.
+     *
+     * This can be slow as all the matching files and directories must be retrieved for comparison.
+     *
+     * @param \Closure $closure An anonymous function
+     *
+     * @return $this
+     *
+     * @see SortableIterator
+     */
+    public function sort(\Closure $closure)
+    {
+        $this->sort = $closure;
+
+        return $this;
+    }
+
+    /**
+     * Sorts files and directories by name.
+     *
+     * This can be slow as all the matching files and directories must be retrieved for comparison.
+     *
+     * @return $this
+     *
+     * @see SortableIterator
+     */
+    public function sortByName()
+    {
+        $this->sort = Iterator\SortableIterator::SORT_BY_NAME;
+
+        return $this;
+    }
+
+    /**
+     * Sorts files and directories by type (directories before files), then by name.
+     *
+     * This can be slow as all the matching files and directories must be retrieved for comparison.
+     *
+     * @return $this
+     *
+     * @see SortableIterator
+     */
+    public function sortByType()
+    {
+        $this->sort = Iterator\SortableIterator::SORT_BY_TYPE;
+
+        return $this;
+    }
+
+    /**
+     * Sorts files and directories by the last accessed time.
+     *
+     * This is the time that the file was last accessed, read or written to.
+     *
+     * This can be slow as all the matching files and directories must be retrieved for comparison.
+     *
+     * @return $this
+     *
+     * @see SortableIterator
+     */
+    public function sortByAccessedTime()
+    {
+        $this->sort = Iterator\SortableIterator::SORT_BY_ACCESSED_TIME;
+
+        return $this;
+    }
+
+    /**
+     * Sorts files and directories by the last inode changed time.
+     *
+     * This is the time that the inode information was last modified (permissions, owner, group or other metadata).
+     *
+     * On Windows, since inode is not available, changed time is actually the file creation time.
+     *
+     * This can be slow as all the matching files and directories must be retrieved for comparison.
+     *
+     * @return $this
+     *
+     * @see SortableIterator
+     */
+    public function sortByChangedTime()
+    {
+        $this->sort = Iterator\SortableIterator::SORT_BY_CHANGED_TIME;
+
+        return $this;
+    }
+
+    /**
+     * Sorts files and directories by the last modified time.
+     *
+     * This is the last time the actual contents of the file were last modified.
+     *
+     * This can be slow as all the matching files and directories must be retrieved for comparison.
+     *
+     * @return $this
+     *
+     * @see SortableIterator
+     */
+    public function sortByModifiedTime()
+    {
+        $this->sort = Iterator\SortableIterator::SORT_BY_MODIFIED_TIME;
+
+        return $this;
+    }
+
+    /**
+     * Filters the iterator with an anonymous function.
+     *
+     * The anonymous function receives a \SplFileInfo and must return false
+     * to remove files.
+     *
+     * @param \Closure $closure An anonymous function
+     *
+     * @return $this
+     *
+     * @see CustomFilterIterator
+     */
+    public function filter(\Closure $closure)
+    {
+        $this->filters[] = $closure;
+
+        return $this;
+    }
+
+    /**
+     * Forces the following of symlinks.
+     *
+     * @return $this
+     */
+    public function followLinks()
+    {
+        $this->followLinks = true;
+
+        return $this;
+    }
+
+    /**
+     * Tells finder to ignore unreadable directories.
+     *
+     * By default, scanning unreadable directories content throws an AccessDeniedException.
+     *
+     * @param bool $ignore
+     *
+     * @return $this
+     */
+    public function ignoreUnreadableDirs($ignore = true)
+    {
+        $this->ignoreUnreadableDirs = (bool) $ignore;
+
+        return $this;
+    }
+
+    /**
+     * Searches files and directories which match defined rules.
+     *
+     * @param string|array $dirs A directory path or an array of directories
+     *
+     * @return $this
+     *
+     * @throws \InvalidArgumentException if one of the directories does not exist
+     */
+    public function in($dirs)
+    {
+        $resolvedDirs = array();
+
+        foreach ((array) $dirs as $dir) {
+            if (is_dir($dir)) {
+                $resolvedDirs[] = $dir;
+            } elseif ($glob = glob($dir, (defined('GLOB_BRACE') ? GLOB_BRACE : 0) | GLOB_ONLYDIR)) {
+                $resolvedDirs = array_merge($resolvedDirs, $glob);
+            } else {
+                throw new \InvalidArgumentException(sprintf('The "%s" directory does not exist.', $dir));
+            }
+        }
+
+        $this->dirs = array_merge($this->dirs, $resolvedDirs);
+
+        return $this;
+    }
+
+    /**
+     * Returns an Iterator for the current Finder configuration.
+     *
+     * This method implements the IteratorAggregate interface.
+     *
+     * @return \Iterator|SplFileInfo[] An iterator
+     *
+     * @throws \LogicException if the in() method has not been called
+     */
+    public function getIterator()
+    {
+        if (0 === count($this->dirs) && 0 === count($this->iterators)) {
+            throw new \LogicException('You must call one of in() or append() methods before iterating over a Finder.');
+        }
+
+        if (1 === count($this->dirs) && 0 === count($this->iterators)) {
+            return $this->searchInDirectory($this->dirs[0]);
+        }
+
+        $iterator = new \AppendIterator();
+        foreach ($this->dirs as $dir) {
+            $iterator->append($this->searchInDirectory($dir));
+        }
+
+        foreach ($this->iterators as $it) {
+            $iterator->append($it);
+        }
+
+        return $iterator;
+    }
+
+    /**
+     * Appends an existing set of files/directories to the finder.
+     *
+     * The set can be another Finder, an Iterator, an IteratorAggregate, or even a plain array.
+     *
+     * @param mixed $iterator
+     *
+     * @return $this
+     *
+     * @throws \InvalidArgumentException When the given argument is not iterable.
+     */
+    public function append($iterator)
+    {
+        if ($iterator instanceof \IteratorAggregate) {
+            $this->iterators[] = $iterator->getIterator();
+        } elseif ($iterator instanceof \Iterator) {
+            $this->iterators[] = $iterator;
+        } elseif ($iterator instanceof \Traversable || is_array($iterator)) {
+            $it = new \ArrayIterator();
+            foreach ($iterator as $file) {
+                $it->append($file instanceof \SplFileInfo ? $file : new \SplFileInfo($file));
+            }
+            $this->iterators[] = $it;
+        } else {
+            throw new \InvalidArgumentException('Finder::append() method wrong argument type.');
+        }
+
+        return $this;
+    }
+
+    /**
+     * Counts all the results collected by the iterators.
+     *
+     * @return int
+     */
+    public function count()
+    {
+        return iterator_count($this->getIterator());
+    }
+
+    /**
+     * @return $this
+     */
+    private function sortAdapters()
+    {
+        uasort($this->adapters, function (array $a, array $b) {
+            if ($a['selected'] || $b['selected']) {
+                return $a['selected'] ? -1 : 1;
+            }
+
+            return $a['priority'] > $b['priority'] ? -1 : 1;
+        });
+
+        return $this;
+    }
+
+    /**
+     * @param $dir
+     *
+     * @return \Iterator
+     */
+    private function searchInDirectory($dir)
+    {
+        if (static::IGNORE_VCS_FILES === (static::IGNORE_VCS_FILES & $this->ignore)) {
+            $this->exclude = array_merge($this->exclude, self::$vcsPatterns);
+        }
+
+        if (static::IGNORE_DOT_FILES === (static::IGNORE_DOT_FILES & $this->ignore)) {
+            $this->notPaths[] = '#(^|/)\..+(/|$)#';
+        }
+
+        if ($this->adapters) {
+            foreach ($this->adapters as $adapter) {
+                if ($adapter['adapter']->isSupported()) {
+                    try {
+                        return $this
+                            ->buildAdapter($adapter['adapter'])
+                            ->searchInDirectory($dir);
+                    } catch (ExceptionInterface $e) {
+                    }
+                }
+            }
+        }
+
+        $minDepth = 0;
+        $maxDepth = PHP_INT_MAX;
+
+        foreach ($this->depths as $comparator) {
+            switch ($comparator->getOperator()) {
+                case '>':
+                    $minDepth = $comparator->getTarget() + 1;
+                    break;
+                case '>=':
+                    $minDepth = $comparator->getTarget();
+                    break;
+                case '<':
+                    $maxDepth = $comparator->getTarget() - 1;
+                    break;
+                case '<=':
+                    $maxDepth = $comparator->getTarget();
+                    break;
+                default:
+                    $minDepth = $maxDepth = $comparator->getTarget();
+            }
+        }
+
+        $flags = \RecursiveDirectoryIterator::SKIP_DOTS;
+
+        if ($this->followLinks) {
+            $flags |= \RecursiveDirectoryIterator::FOLLOW_SYMLINKS;
+        }
+
+        $iterator = new Iterator\RecursiveDirectoryIterator($dir, $flags, $this->ignoreUnreadableDirs);
+
+        if ($this->exclude) {
+            $iterator = new Iterator\ExcludeDirectoryFilterIterator($iterator, $this->exclude);
+        }
+
+        $iterator = new \RecursiveIteratorIterator($iterator, \RecursiveIteratorIterator::SELF_FIRST);
+
+        if ($minDepth > 0 || $maxDepth < PHP_INT_MAX) {
+            $iterator = new Iterator\DepthRangeFilterIterator($iterator, $minDepth, $maxDepth);
+        }
+
+        if ($this->mode) {
+            $iterator = new Iterator\FileTypeFilterIterator($iterator, $this->mode);
+        }
+
+        if ($this->names || $this->notNames) {
+            $iterator = new Iterator\FilenameFilterIterator($iterator, $this->names, $this->notNames);
+        }
+
+        if ($this->contains || $this->notContains) {
+            $iterator = new Iterator\FilecontentFilterIterator($iterator, $this->contains, $this->notContains);
+        }
+
+        if ($this->sizes) {
+            $iterator = new Iterator\SizeRangeFilterIterator($iterator, $this->sizes);
+        }
+
+        if ($this->dates) {
+            $iterator = new Iterator\DateRangeFilterIterator($iterator, $this->dates);
+        }
+
+        if ($this->filters) {
+            $iterator = new Iterator\CustomFilterIterator($iterator, $this->filters);
+        }
+
+        if ($this->paths || $this->notPaths) {
+            $iterator = new Iterator\PathFilterIterator($iterator, $this->paths, $this->notPaths);
+        }
+
+        if ($this->sort) {
+            $iteratorAggregate = new Iterator\SortableIterator($iterator, $this->sort);
+            $iterator = $iteratorAggregate->getIterator();
+        }
+
+        return $iterator;
+    }
+
+    /**
+     * @param AdapterInterface $adapter
+     *
+     * @return AdapterInterface
+     */
+    private function buildAdapter(AdapterInterface $adapter)
+    {
+        return $adapter
+            ->setFollowLinks($this->followLinks)
+            ->setDepths($this->depths)
+            ->setMode($this->mode)
+            ->setExclude($this->exclude)
+            ->setNames($this->names)
+            ->setNotNames($this->notNames)
+            ->setContains($this->contains)
+            ->setNotContains($this->notContains)
+            ->setSizes($this->sizes)
+            ->setDates($this->dates)
+            ->setFilters($this->filters)
+            ->setSort($this->sort)
+            ->setPath($this->paths)
+            ->setNotPath($this->notPaths)
+            ->ignoreUnreadableDirs($this->ignoreUnreadableDirs);
+    }
+
+    /**
+     * Unselects all adapters.
+     */
+    private function resetAdapterSelection()
+    {
+        $this->adapters = array_map(function (array $properties) {
+            $properties['selected'] = false;
+
+            return $properties;
+        }, $this->adapters);
+    }
+
+    private function initDefaultAdapters()
+    {
+        if (null === $this->adapters) {
+            $this->adapters = array();
+            $this
+                ->addAdapter(new GnuFindAdapter())
+                ->addAdapter(new BsdFindAdapter())
+                ->addAdapter(new PhpAdapter(), -50)
+                ->setAdapter('php')
+            ;
+        }
+    }
+}