Move into nested docroot

2017-02-13 15:31:17 +00:00 · 2017-02-13 15:31:17 +00:00 · c8b70abde9
commit c8b70abde9
parent 83a0d3a149
13405 changed files with 0 additions and 0 deletions
--- a/web/vendor/symfony/debug/.gitignore
+++ b/web/vendor/symfony/debug/.gitignore
@ -0,0 +1,3 @@
+vendor/
+composer.lock
+phpunit.xml
--- a/web/vendor/symfony/debug/BufferingLogger.php
+++ b/web/vendor/symfony/debug/BufferingLogger.php
@ -0,0 +1,37 @@
+<?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\Debug;
+
+use Psr\Log\AbstractLogger;
+
+/**
+ * A buffering logger that stacks logs for later.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class BufferingLogger extends AbstractLogger
+{
+    private $logs = array();
+
+    public function log($level, $message, array $context = array())
+    {
+        $this->logs[] = array($level, $message, $context);
+    }
+
+    public function cleanLogs()
+    {
+        $logs = $this->logs;
+        $this->logs = array();
+
+        return $logs;
+    }
+}
--- a/web/vendor/symfony/debug/CHANGELOG.md
+++ b/web/vendor/symfony/debug/CHANGELOG.md
@ -0,0 +1,42 @@
+CHANGELOG
+=========
+
+2.8.0
+-----
+
+* added BufferingLogger for errors that happen before a proper logger is configured
+* allow throwing from `__toString()` with `return trigger_error($e, E_USER_ERROR);`
+* deprecate ExceptionHandler::createResponse
+
+2.7.0
+-----
+
+* added deprecations checking for parent interfaces/classes to DebugClassLoader
+* added ZTS support to symfony_debug extension
+* added symfony_debug_backtrace() to symfony_debug extension
+  to track the backtrace of fatal errors
+
+2.6.0
+-----
+
+* generalized ErrorHandler and ExceptionHandler,
+  with some new methods and others deprecated
+* enhanced error messages for uncaught exceptions
+
+2.5.0
+-----
+
+* added ExceptionHandler::setHandler()
+* added UndefinedMethodFatalErrorHandler
+* deprecated DummyException
+
+2.4.0
+-----
+
+ * added a DebugClassLoader able to wrap any autoloader providing a findFile method
+ * improved error messages for not found classes and functions
+
+2.3.0
+-----
+
+ * added the component
--- a/web/vendor/symfony/debug/Debug.php
+++ b/web/vendor/symfony/debug/Debug.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\Debug;
+
+/**
+ * Registers all the debug tools.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Debug
+{
+    private static $enabled = false;
+
+    /**
+     * Enables the debug tools.
+     *
+     * This method registers an error handler and an exception handler.
+     *
+     * If the Symfony ClassLoader component is available, a special
+     * class loader is also registered.
+     *
+     * @param int  $errorReportingLevel The level of error reporting you want
+     * @param bool $displayErrors       Whether to display errors (for development) or just log them (for production)
+     */
+    public static function enable($errorReportingLevel = null, $displayErrors = true)
+    {
+        if (static::$enabled) {
+            return;
+        }
+
+        static::$enabled = true;
+
+        if (null !== $errorReportingLevel) {
+            error_reporting($errorReportingLevel);
+        } else {
+            error_reporting(-1);
+        }
+
+        if ('cli' !== PHP_SAPI) {
+            ini_set('display_errors', 0);
+            ExceptionHandler::register();
+        } elseif ($displayErrors && (!ini_get('log_errors') || ini_get('error_log'))) {
+            // CLI - display errors only if they're not already logged to STDERR
+            ini_set('display_errors', 1);
+        }
+        if ($displayErrors) {
+            ErrorHandler::register(new ErrorHandler(new BufferingLogger()));
+        } else {
+            ErrorHandler::register()->throwAt(0, true);
+        }
+
+        DebugClassLoader::enable();
+    }
+}
--- a/web/vendor/symfony/debug/DebugClassLoader.php
+++ b/web/vendor/symfony/debug/DebugClassLoader.php
@ -0,0 +1,349 @@
+<?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\Debug;
+
+/**
+ * Autoloader checking if the class is really defined in the file found.
+ *
+ * The ClassLoader will wrap all registered autoloaders
+ * and will throw an exception if a file is found but does
+ * not declare the class.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Christophe Coevoet <stof@notk.org>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class DebugClassLoader
+{
+    private $classLoader;
+    private $isFinder;
+    private $wasFinder;
+    private static $caseCheck;
+    private static $deprecated = array();
+    private static $php7Reserved = array('int', 'float', 'bool', 'string', 'true', 'false', 'null');
+    private static $darwinCache = array('/' => array('/', array()));
+
+    /**
+     * Constructor.
+     *
+     * @param callable|object $classLoader Passing an object is @deprecated since version 2.5 and support for it will be removed in 3.0
+     */
+    public function __construct($classLoader)
+    {
+        $this->wasFinder = is_object($classLoader) && method_exists($classLoader, 'findFile');
+
+        if ($this->wasFinder) {
+            @trigger_error('The '.__METHOD__.' method will no longer support receiving an object into its $classLoader argument in 3.0.', E_USER_DEPRECATED);
+            $this->classLoader = array($classLoader, 'loadClass');
+            $this->isFinder = true;
+        } else {
+            $this->classLoader = $classLoader;
+            $this->isFinder = is_array($classLoader) && method_exists($classLoader[0], 'findFile');
+        }
+
+        if (!isset(self::$caseCheck)) {
+            $file = file_exists(__FILE__) ? __FILE__ : rtrim(realpath('.'), DIRECTORY_SEPARATOR);
+            $i = strrpos($file, DIRECTORY_SEPARATOR);
+            $dir = substr($file, 0, 1 + $i);
+            $file = substr($file, 1 + $i);
+            $test = strtoupper($file) === $file ? strtolower($file) : strtoupper($file);
+            $test = realpath($dir.$test);
+
+            if (false === $test || false === $i) {
+                // filesystem is case sensitive
+                self::$caseCheck = 0;
+            } elseif (substr($test, -strlen($file)) === $file) {
+                // filesystem is case insensitive and realpath() normalizes the case of characters
+                self::$caseCheck = 1;
+            } elseif (false !== stripos(PHP_OS, 'darwin')) {
+                // on MacOSX, HFS+ is case insensitive but realpath() doesn't normalize the case of characters
+                self::$caseCheck = 2;
+            } else {
+                // filesystem case checks failed, fallback to disabling them
+                self::$caseCheck = 0;
+            }
+        }
+    }
+
+    /**
+     * Gets the wrapped class loader.
+     *
+     * @return callable|object A class loader. Since version 2.5, returning an object is @deprecated and support for it will be removed in 3.0
+     */
+    public function getClassLoader()
+    {
+        return $this->wasFinder ? $this->classLoader[0] : $this->classLoader;
+    }
+
+    /**
+     * Wraps all autoloaders.
+     */
+    public static function enable()
+    {
+        // Ensures we don't hit https://bugs.php.net/42098
+        class_exists('Symfony\Component\Debug\ErrorHandler');
+        class_exists('Psr\Log\LogLevel');
+
+        if (!is_array($functions = spl_autoload_functions())) {
+            return;
+        }
+
+        foreach ($functions as $function) {
+            spl_autoload_unregister($function);
+        }
+
+        foreach ($functions as $function) {
+            if (!is_array($function) || !$function[0] instanceof self) {
+                $function = array(new static($function), 'loadClass');
+            }
+
+            spl_autoload_register($function);
+        }
+    }
+
+    /**
+     * Disables the wrapping.
+     */
+    public static function disable()
+    {
+        if (!is_array($functions = spl_autoload_functions())) {
+            return;
+        }
+
+        foreach ($functions as $function) {
+            spl_autoload_unregister($function);
+        }
+
+        foreach ($functions as $function) {
+            if (is_array($function) && $function[0] instanceof self) {
+                $function = $function[0]->getClassLoader();
+            }
+
+            spl_autoload_register($function);
+        }
+    }
+
+    /**
+     * Finds a file by class name.
+     *
+     * @param string $class A class name to resolve to file
+     *
+     * @return string|null
+     *
+     * @deprecated since version 2.5, to be removed in 3.0.
+     */
+    public function findFile($class)
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since version 2.5 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+        if ($this->wasFinder) {
+            return $this->classLoader[0]->findFile($class);
+        }
+    }
+
+    /**
+     * Loads the given class or interface.
+     *
+     * @param string $class The name of the class
+     *
+     * @return bool|null True, if loaded
+     *
+     * @throws \RuntimeException
+     */
+    public function loadClass($class)
+    {
+        ErrorHandler::stackErrors();
+
+        try {
+            if ($this->isFinder) {
+                if ($file = $this->classLoader[0]->findFile($class)) {
+                    require_once $file;
+                }
+            } else {
+                call_user_func($this->classLoader, $class);
+                $file = false;
+            }
+        } catch (\Exception $e) {
+            ErrorHandler::unstackErrors();
+
+            throw $e;
+        } catch (\Throwable $e) {
+            ErrorHandler::unstackErrors();
+
+            throw $e;
+        }
+
+        ErrorHandler::unstackErrors();
+
+        $exists = class_exists($class, false) || interface_exists($class, false) || (function_exists('trait_exists') && trait_exists($class, false));
+
+        if ('\\' === $class[0]) {
+            $class = substr($class, 1);
+        }
+
+        if ($exists) {
+            $refl = new \ReflectionClass($class);
+            $name = $refl->getName();
+
+            if ($name !== $class && 0 === strcasecmp($name, $class)) {
+                throw new \RuntimeException(sprintf('Case mismatch between loaded and declared class names: %s vs %s', $class, $name));
+            }
+
+            if (in_array(strtolower($refl->getShortName()), self::$php7Reserved)) {
+                @trigger_error(sprintf('%s uses a reserved class name (%s) that will break on PHP 7 and higher', $name, $refl->getShortName()), E_USER_DEPRECATED);
+            } elseif (preg_match('#\n \* @deprecated (.*?)\r?\n \*(?: @|/$)#s', $refl->getDocComment(), $notice)) {
+                self::$deprecated[$name] = preg_replace('#\s*\r?\n \* +#', ' ', $notice[1]);
+            } else {
+                if (2 > $len = 1 + (strpos($name, '\\', 1 + strpos($name, '\\')) ?: strpos($name, '_'))) {
+                    $len = 0;
+                    $ns = '';
+                } else {
+                    switch ($ns = substr($name, 0, $len)) {
+                        case 'Symfony\Bridge\\':
+                        case 'Symfony\Bundle\\':
+                        case 'Symfony\Component\\':
+                            $ns = 'Symfony\\';
+                            $len = strlen($ns);
+                            break;
+                    }
+                }
+                $parent = get_parent_class($class);
+
+                if (!$parent || strncmp($ns, $parent, $len)) {
+                    if ($parent && isset(self::$deprecated[$parent]) && strncmp($ns, $parent, $len)) {
+                        @trigger_error(sprintf('The %s class extends %s that is deprecated %s', $name, $parent, self::$deprecated[$parent]), E_USER_DEPRECATED);
+                    }
+
+                    $parentInterfaces = array();
+                    $deprecatedInterfaces = array();
+                    if ($parent) {
+                        foreach (class_implements($parent) as $interface) {
+                            $parentInterfaces[$interface] = 1;
+                        }
+                    }
+
+                    foreach ($refl->getInterfaceNames() as $interface) {
+                        if (isset(self::$deprecated[$interface]) && strncmp($ns, $interface, $len)) {
+                            $deprecatedInterfaces[] = $interface;
+                        }
+                        foreach (class_implements($interface) as $interface) {
+                            $parentInterfaces[$interface] = 1;
+                        }
+                    }
+
+                    foreach ($deprecatedInterfaces as $interface) {
+                        if (!isset($parentInterfaces[$interface])) {
+                            @trigger_error(sprintf('The %s %s %s that is deprecated %s', $name, $refl->isInterface() ? 'interface extends' : 'class implements', $interface, self::$deprecated[$interface]), E_USER_DEPRECATED);
+                        }
+                    }
+                }
+            }
+        }
+
+        if ($file) {
+            if (!$exists) {
+                if (false !== strpos($class, '/')) {
+                    throw new \RuntimeException(sprintf('Trying to autoload a class with an invalid name "%s". Be careful that the namespace separator is "\" in PHP, not "/".', $class));
+                }
+
+                throw new \RuntimeException(sprintf('The autoloader expected class "%s" to be defined in file "%s". The file was found but the class was not in it, the class name or namespace probably has a typo.', $class, $file));
+            }
+            if (self::$caseCheck) {
+                $real = explode('\\', $class.strrchr($file, '.'));
+                $tail = explode(DIRECTORY_SEPARATOR, str_replace('/', DIRECTORY_SEPARATOR, $file));
+
+                $i = count($tail) - 1;
+                $j = count($real) - 1;
+
+                while (isset($tail[$i], $real[$j]) && $tail[$i] === $real[$j]) {
+                    --$i;
+                    --$j;
+                }
+
+                array_splice($tail, 0, $i + 1);
+            }
+            if (self::$caseCheck && $tail) {
+                $tail = DIRECTORY_SEPARATOR.implode(DIRECTORY_SEPARATOR, $tail);
+                $tailLen = strlen($tail);
+                $real = $refl->getFileName();
+
+                if (2 === self::$caseCheck) {
+                    // realpath() on MacOSX doesn't normalize the case of characters
+
+                    $i = 1 + strrpos($real, '/');
+                    $file = substr($real, $i);
+                    $real = substr($real, 0, $i);
+
+                    if (isset(self::$darwinCache[$real])) {
+                        $kDir = $real;
+                    } else {
+                        $kDir = strtolower($real);
+
+                        if (isset(self::$darwinCache[$kDir])) {
+                            $real = self::$darwinCache[$kDir][0];
+                        } else {
+                            $dir = getcwd();
+                            chdir($real);
+                            $real = getcwd().'/';
+                            chdir($dir);
+
+                            $dir = $real;
+                            $k = $kDir;
+                            $i = strlen($dir) - 1;
+                            while (!isset(self::$darwinCache[$k])) {
+                                self::$darwinCache[$k] = array($dir, array());
+                                self::$darwinCache[$dir] = &self::$darwinCache[$k];
+
+                                while ('/' !== $dir[--$i]) {
+                                }
+                                $k = substr($k, 0, ++$i);
+                                $dir = substr($dir, 0, $i--);
+                            }
+                        }
+                    }
+
+                    $dirFiles = self::$darwinCache[$kDir][1];
+
+                    if (isset($dirFiles[$file])) {
+                        $kFile = $file;
+                    } else {
+                        $kFile = strtolower($file);
+
+                        if (!isset($dirFiles[$kFile])) {
+                            foreach (scandir($real, 2) as $f) {
+                                if ('.' !== $f[0]) {
+                                    $dirFiles[$f] = $f;
+                                    if ($f === $file) {
+                                        $kFile = $k = $file;
+                                    } elseif ($f !== $k = strtolower($f)) {
+                                        $dirFiles[$k] = $f;
+                                    }
+                                }
+                            }
+                            self::$darwinCache[$kDir][1] = $dirFiles;
+                        }
+                    }
+
+                    $real .= $dirFiles[$kFile];
+                }
+
+                if (0 === substr_compare($real, $tail, -$tailLen, $tailLen, true)
+                  && 0 !== substr_compare($real, $tail, -$tailLen, $tailLen, false)
+                ) {
+                    throw new \RuntimeException(sprintf('Case mismatch between class and real file names: %s vs %s in %s', substr($tail, -$tailLen + 1), substr($real, -$tailLen + 1), substr($real, 0, -$tailLen + 1)));
+                }
+            }
+
+            return true;
+        }
+    }
+}
--- a/web/vendor/symfony/debug/ErrorHandler.php
+++ b/web/vendor/symfony/debug/ErrorHandler.php
@ -0,0 +1,833 @@
+<?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\Debug;
+
+use Psr\Log\LogLevel;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Debug\Exception\ContextErrorException;
+use Symfony\Component\Debug\Exception\FatalErrorException;
+use Symfony\Component\Debug\Exception\FatalThrowableError;
+use Symfony\Component\Debug\Exception\OutOfMemoryException;
+use Symfony\Component\Debug\FatalErrorHandler\UndefinedFunctionFatalErrorHandler;
+use Symfony\Component\Debug\FatalErrorHandler\UndefinedMethodFatalErrorHandler;
+use Symfony\Component\Debug\FatalErrorHandler\ClassNotFoundFatalErrorHandler;
+use Symfony\Component\Debug\FatalErrorHandler\FatalErrorHandlerInterface;
+
+/**
+ * A generic ErrorHandler for the PHP engine.
+ *
+ * Provides five bit fields that control how errors are handled:
+ * - thrownErrors: errors thrown as \ErrorException
+ * - loggedErrors: logged errors, when not @-silenced
+ * - scopedErrors: errors thrown or logged with their local context
+ * - tracedErrors: errors logged with their stack trace, only once for repeated errors
+ * - screamedErrors: never @-silenced errors
+ *
+ * Each error level can be logged by a dedicated PSR-3 logger object.
+ * Screaming only applies to logging.
+ * Throwing takes precedence over logging.
+ * Uncaught exceptions are logged as E_ERROR.
+ * E_DEPRECATED and E_USER_DEPRECATED levels never throw.
+ * E_RECOVERABLE_ERROR and E_USER_ERROR levels always throw.
+ * Non catchable errors that can be detected at shutdown time are logged when the scream bit field allows so.
+ * As errors have a performance cost, repeated errors are all logged, so that the developer
+ * can see them and weight them as more important to fix than others of the same level.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ErrorHandler
+{
+    /**
+     * @deprecated since version 2.6, to be removed in 3.0.
+     */
+    const TYPE_DEPRECATION = -100;
+
+    private $levels = array(
+        E_DEPRECATED => 'Deprecated',
+        E_USER_DEPRECATED => 'User Deprecated',
+        E_NOTICE => 'Notice',
+        E_USER_NOTICE => 'User Notice',
+        E_STRICT => 'Runtime Notice',
+        E_WARNING => 'Warning',
+        E_USER_WARNING => 'User Warning',
+        E_COMPILE_WARNING => 'Compile Warning',
+        E_CORE_WARNING => 'Core Warning',
+        E_USER_ERROR => 'User Error',
+        E_RECOVERABLE_ERROR => 'Catchable Fatal Error',
+        E_COMPILE_ERROR => 'Compile Error',
+        E_PARSE => 'Parse Error',
+        E_ERROR => 'Error',
+        E_CORE_ERROR => 'Core Error',
+    );
+
+    private $loggers = array(
+        E_DEPRECATED => array(null, LogLevel::INFO),
+        E_USER_DEPRECATED => array(null, LogLevel::INFO),
+        E_NOTICE => array(null, LogLevel::WARNING),
+        E_USER_NOTICE => array(null, LogLevel::WARNING),
+        E_STRICT => array(null, LogLevel::WARNING),
+        E_WARNING => array(null, LogLevel::WARNING),
+        E_USER_WARNING => array(null, LogLevel::WARNING),
+        E_COMPILE_WARNING => array(null, LogLevel::WARNING),
+        E_CORE_WARNING => array(null, LogLevel::WARNING),
+        E_USER_ERROR => array(null, LogLevel::CRITICAL),
+        E_RECOVERABLE_ERROR => array(null, LogLevel::CRITICAL),
+        E_COMPILE_ERROR => array(null, LogLevel::CRITICAL),
+        E_PARSE => array(null, LogLevel::CRITICAL),
+        E_ERROR => array(null, LogLevel::CRITICAL),
+        E_CORE_ERROR => array(null, LogLevel::CRITICAL),
+    );
+
+    private $thrownErrors = 0x1FFF; // E_ALL - E_DEPRECATED - E_USER_DEPRECATED
+    private $scopedErrors = 0x1FFF; // E_ALL - E_DEPRECATED - E_USER_DEPRECATED
+    private $tracedErrors = 0x77FB; // E_ALL - E_STRICT - E_PARSE
+    private $screamedErrors = 0x55; // E_ERROR + E_CORE_ERROR + E_COMPILE_ERROR + E_PARSE
+    private $loggedErrors = 0;
+
+    private $loggedTraces = array();
+    private $isRecursive = 0;
+    private $isRoot = false;
+    private $exceptionHandler;
+    private $bootstrappingLogger;
+
+    private static $reservedMemory;
+    private static $stackedErrors = array();
+    private static $stackedErrorLevels = array();
+    private static $toStringException = null;
+
+    /**
+     * Same init value as thrownErrors.
+     *
+     * @deprecated since version 2.6, to be removed in 3.0.
+     */
+    private $displayErrors = 0x1FFF;
+
+    /**
+     * Registers the error handler.
+     *
+     * @param self|null|int $handler The handler to register, or @deprecated (since version 2.6, to be removed in 3.0) bit field of thrown levels
+     * @param bool          $replace Whether to replace or not any existing handler
+     *
+     * @return self The registered error handler
+     */
+    public static function register($handler = null, $replace = true)
+    {
+        if (null === self::$reservedMemory) {
+            self::$reservedMemory = str_repeat('x', 10240);
+            register_shutdown_function(__CLASS__.'::handleFatalError');
+        }
+
+        $levels = -1;
+
+        if ($handlerIsNew = !$handler instanceof self) {
+            // @deprecated polymorphism, to be removed in 3.0
+            if (null !== $handler) {
+                $levels = $replace ? $handler : 0;
+                $replace = true;
+            }
+            $handler = new static();
+        }
+
+        if (null === $prev = set_error_handler(array($handler, 'handleError'))) {
+            restore_error_handler();
+            // Specifying the error types earlier would expose us to https://bugs.php.net/63206
+            set_error_handler(array($handler, 'handleError'), $handler->thrownErrors | $handler->loggedErrors);
+            $handler->isRoot = true;
+        }
+
+        if ($handlerIsNew && is_array($prev) && $prev[0] instanceof self) {
+            $handler = $prev[0];
+            $replace = false;
+        }
+        if ($replace || !$prev) {
+            $handler->setExceptionHandler(set_exception_handler(array($handler, 'handleException')));
+        } else {
+            restore_error_handler();
+        }
+
+        $handler->throwAt($levels & $handler->thrownErrors, true);
+
+        return $handler;
+    }
+
+    public function __construct(BufferingLogger $bootstrappingLogger = null)
+    {
+        if ($bootstrappingLogger) {
+            $this->bootstrappingLogger = $bootstrappingLogger;
+            $this->setDefaultLogger($bootstrappingLogger);
+        }
+    }
+
+    /**
+     * Sets a logger to non assigned errors levels.
+     *
+     * @param LoggerInterface $logger  A PSR-3 logger to put as default for the given levels
+     * @param array|int       $levels  An array map of E_* to LogLevel::* or an integer bit field of E_* constants
+     * @param bool            $replace Whether to replace or not any existing logger
+     */
+    public function setDefaultLogger(LoggerInterface $logger, $levels = null, $replace = false)
+    {
+        $loggers = array();
+
+        if (is_array($levels)) {
+            foreach ($levels as $type => $logLevel) {
+                if (empty($this->loggers[$type][0]) || $replace || $this->loggers[$type][0] === $this->bootstrappingLogger) {
+                    $loggers[$type] = array($logger, $logLevel);
+                }
+            }
+        } else {
+            if (null === $levels) {
+                $levels = E_ALL | E_STRICT;
+            }
+            foreach ($this->loggers as $type => $log) {
+                if (($type & $levels) && (empty($log[0]) || $replace || $log[0] === $this->bootstrappingLogger)) {
+                    $log[0] = $logger;
+                    $loggers[$type] = $log;
+                }
+            }
+        }
+
+        $this->setLoggers($loggers);
+    }
+
+    /**
+     * Sets a logger for each error level.
+     *
+     * @param array $loggers Error levels to [LoggerInterface|null, LogLevel::*] map
+     *
+     * @return array The previous map
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function setLoggers(array $loggers)
+    {
+        $prevLogged = $this->loggedErrors;
+        $prev = $this->loggers;
+        $flush = array();
+
+        foreach ($loggers as $type => $log) {
+            if (!isset($prev[$type])) {
+                throw new \InvalidArgumentException('Unknown error type: '.$type);
+            }
+            if (!is_array($log)) {
+                $log = array($log);
+            } elseif (!array_key_exists(0, $log)) {
+                throw new \InvalidArgumentException('No logger provided');
+            }
+            if (null === $log[0]) {
+                $this->loggedErrors &= ~$type;
+            } elseif ($log[0] instanceof LoggerInterface) {
+                $this->loggedErrors |= $type;
+            } else {
+                throw new \InvalidArgumentException('Invalid logger provided');
+            }
+            $this->loggers[$type] = $log + $prev[$type];
+
+            if ($this->bootstrappingLogger && $prev[$type][0] === $this->bootstrappingLogger) {
+                $flush[$type] = $type;
+            }
+        }
+        $this->reRegister($prevLogged | $this->thrownErrors);
+
+        if ($flush) {
+            foreach ($this->bootstrappingLogger->cleanLogs() as $log) {
+                $type = $log[2]['type'];
+                if (!isset($flush[$type])) {
+                    $this->bootstrappingLogger->log($log[0], $log[1], $log[2]);
+                } elseif ($this->loggers[$type][0]) {
+                    $this->loggers[$type][0]->log($this->loggers[$type][1], $log[1], $log[2]);
+                }
+            }
+        }
+
+        return $prev;
+    }
+
+    /**
+     * Sets a user exception handler.
+     *
+     * @param callable $handler A handler that will be called on Exception
+     *
+     * @return callable|null The previous exception handler
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function setExceptionHandler($handler)
+    {
+        if (null !== $handler && !is_callable($handler)) {
+            throw new \LogicException('The exception handler must be a valid PHP callable.');
+        }
+        $prev = $this->exceptionHandler;
+        $this->exceptionHandler = $handler;
+
+        return $prev;
+    }
+
+    /**
+     * Sets the PHP error levels that throw an exception when a PHP error occurs.
+     *
+     * @param int  $levels  A bit field of E_* constants for thrown errors
+     * @param bool $replace Replace or amend the previous value
+     *
+     * @return int The previous value
+     */
+    public function throwAt($levels, $replace = false)
+    {
+        $prev = $this->thrownErrors;
+        $this->thrownErrors = ($levels | E_RECOVERABLE_ERROR | E_USER_ERROR) & ~E_USER_DEPRECATED & ~E_DEPRECATED;
+        if (!$replace) {
+            $this->thrownErrors |= $prev;
+        }
+        $this->reRegister($prev | $this->loggedErrors);
+
+        // $this->displayErrors is @deprecated since version 2.6
+        $this->displayErrors = $this->thrownErrors;
+
+        return $prev;
+    }
+
+    /**
+     * Sets the PHP error levels for which local variables are preserved.
+     *
+     * @param int  $levels  A bit field of E_* constants for scoped errors
+     * @param bool $replace Replace or amend the previous value
+     *
+     * @return int The previous value
+     */
+    public function scopeAt($levels, $replace = false)
+    {
+        $prev = $this->scopedErrors;
+        $this->scopedErrors = (int) $levels;
+        if (!$replace) {
+            $this->scopedErrors |= $prev;
+        }
+
+        return $prev;
+    }
+
+    /**
+     * Sets the PHP error levels for which the stack trace is preserved.
+     *
+     * @param int  $levels  A bit field of E_* constants for traced errors
+     * @param bool $replace Replace or amend the previous value
+     *
+     * @return int The previous value
+     */
+    public function traceAt($levels, $replace = false)
+    {
+        $prev = $this->tracedErrors;
+        $this->tracedErrors = (int) $levels;
+        if (!$replace) {
+            $this->tracedErrors |= $prev;
+        }
+
+        return $prev;
+    }
+
+    /**
+     * Sets the error levels where the @-operator is ignored.
+     *
+     * @param int  $levels  A bit field of E_* constants for screamed errors
+     * @param bool $replace Replace or amend the previous value
+     *
+     * @return int The previous value
+     */
+    public function screamAt($levels, $replace = false)
+    {
+        $prev = $this->screamedErrors;
+        $this->screamedErrors = (int) $levels;
+        if (!$replace) {
+            $this->screamedErrors |= $prev;
+        }
+
+        return $prev;
+    }
+
+    /**
+     * Re-registers as a PHP error handler if levels changed.
+     */
+    private function reRegister($prev)
+    {
+        if ($prev !== $this->thrownErrors | $this->loggedErrors) {
+            $handler = set_error_handler('var_dump');
+            $handler = is_array($handler) ? $handler[0] : null;
+            restore_error_handler();
+            if ($handler === $this) {
+                restore_error_handler();
+                if ($this->isRoot) {
+                    set_error_handler(array($this, 'handleError'), $this->thrownErrors | $this->loggedErrors);
+                } else {
+                    set_error_handler(array($this, 'handleError'));
+                }
+            }
+        }
+    }
+
+    /**
+     * Handles errors by filtering then logging them according to the configured bit fields.
+     *
+     * @param int    $type      One of the E_* constants
+     * @param string $message
+     * @param string $file
+     * @param int    $line
+     * @param array  $context
+     * @param array  $backtrace
+     *
+     * @return bool Returns false when no handling happens so that the PHP engine can handle the error itself
+     *
+     * @throws \ErrorException When $this->thrownErrors requests so
+     *
+     * @internal
+     */
+    public function handleError($type, $message, $file, $line, array $context, array $backtrace = null)
+    {
+        $level = error_reporting() | E_RECOVERABLE_ERROR | E_USER_ERROR | E_DEPRECATED | E_USER_DEPRECATED;
+        $log = $this->loggedErrors & $type;
+        $throw = $this->thrownErrors & $type & $level;
+        $type &= $level | $this->screamedErrors;
+
+        if (!$type || (!$log && !$throw)) {
+            return $type && $log;
+        }
+
+        if (isset($context['GLOBALS']) && ($this->scopedErrors & $type)) {
+            $e = $context;                  // Whatever the signature of the method,
+            unset($e['GLOBALS'], $context); // $context is always a reference in 5.3
+            $context = $e;
+        }
+
+        if (null !== $backtrace && $type & E_ERROR) {
+            // E_ERROR fatal errors are triggered on HHVM when
+            // hhvm.error_handling.call_user_handler_on_fatals=1
+            // which is the way to get their backtrace.
+            $this->handleFatalError(compact('type', 'message', 'file', 'line', 'backtrace'));
+
+            return true;
+        }
+
+        if ($throw) {
+            if (null !== self::$toStringException) {
+                $throw = self::$toStringException;
+                self::$toStringException = null;
+            } elseif (($this->scopedErrors & $type) && class_exists('Symfony\Component\Debug\Exception\ContextErrorException')) {
+                // Checking for class existence is a work around for https://bugs.php.net/42098
+                $throw = new ContextErrorException($this->levels[$type].': '.$message, 0, $type, $file, $line, $context);
+            } else {
+                $throw = new \ErrorException($this->levels[$type].': '.$message, 0, $type, $file, $line);
+            }
+
+            if (PHP_VERSION_ID <= 50407 && (PHP_VERSION_ID >= 50400 || PHP_VERSION_ID <= 50317)) {
+                // Exceptions thrown from error handlers are sometimes not caught by the exception
+                // handler and shutdown handlers are bypassed before 5.4.8/5.3.18.
+                // We temporarily re-enable display_errors to prevent any blank page related to this bug.
+
+                $throw->errorHandlerCanary = new ErrorHandlerCanary();
+            }
+
+            if (E_USER_ERROR & $type) {
+                $backtrace = $backtrace ?: $throw->getTrace();
+
+                for ($i = 1; isset($backtrace[$i]); ++$i) {
+                    if (isset($backtrace[$i]['function'], $backtrace[$i]['type'], $backtrace[$i - 1]['function'])
+                        && '__toString' === $backtrace[$i]['function']
+                        && '->' === $backtrace[$i]['type']
+                        && !isset($backtrace[$i - 1]['class'])
+                        && ('trigger_error' === $backtrace[$i - 1]['function'] || 'user_error' === $backtrace[$i - 1]['function'])
+                    ) {
+                        // Here, we know trigger_error() has been called from __toString().
+                        // HHVM is fine with throwing from __toString() but PHP triggers a fatal error instead.
+                        // A small convention allows working around the limitation:
+                        // given a caught $e exception in __toString(), quitting the method with
+                        // `return trigger_error($e, E_USER_ERROR);` allows this error handler
+                        // to make $e get through the __toString() barrier.
+
+                        foreach ($context as $e) {
+                            if (($e instanceof \Exception || $e instanceof \Throwable) && $e->__toString() === $message) {
+                                if (1 === $i) {
+                                    // On HHVM
+                                    $throw = $e;
+                                    break;
+                                }
+                                self::$toStringException = $e;
+
+                                return true;
+                            }
+                        }
+
+                        if (1 < $i) {
+                            // On PHP (not on HHVM), display the original error message instead of the default one.
+                            $this->handleException($throw);
+
+                            // Stop the process by giving back the error to the native handler.
+                            return false;
+                        }
+                    }
+                }
+            }
+
+            throw $throw;
+        }
+
+        // For duplicated errors, log the trace only once
+        $e = md5("{$type}/{$line}/{$file}\x00{$message}", true);
+        $trace = true;
+
+        if (!($this->tracedErrors & $type) || isset($this->loggedTraces[$e])) {
+            $trace = false;
+        } else {
+            $this->loggedTraces[$e] = 1;
+        }
+
+        $e = compact('type', 'file', 'line', 'level');
+
+        if ($type & $level) {
+            if ($this->scopedErrors & $type) {
+                $e['scope_vars'] = $context;
+                if ($trace) {
+                    $e['stack'] = $backtrace ?: debug_backtrace(DEBUG_BACKTRACE_PROVIDE_OBJECT);
+                }
+            } elseif ($trace) {
+                if (null === $backtrace) {
+                    $e['stack'] = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
+                } else {
+                    foreach ($backtrace as &$frame) {
+                        unset($frame['args'], $frame);
+                    }
+                    $e['stack'] = $backtrace;
+                }
+            }
+        }
+
+        if ($this->isRecursive) {
+            $log = 0;
+        } elseif (self::$stackedErrorLevels) {
+            self::$stackedErrors[] = array($this->loggers[$type][0], ($type & $level) ? $this->loggers[$type][1] : LogLevel::DEBUG, $message, $e);
+        } else {
+            try {
+                $this->isRecursive = true;
+                $this->loggers[$type][0]->log(($type & $level) ? $this->loggers[$type][1] : LogLevel::DEBUG, $message, $e);
+                $this->isRecursive = false;
+            } catch (\Exception $e) {
+                $this->isRecursive = false;
+
+                throw $e;
+            } catch (\Throwable $e) {
+                $this->isRecursive = false;
+
+                throw $e;
+            }
+        }
+
+        return $type && $log;
+    }
+
+    /**
+     * Handles an exception by logging then forwarding it to another handler.
+     *
+     * @param \Exception|\Throwable $exception An exception to handle
+     * @param array                 $error     An array as returned by error_get_last()
+     *
+     * @internal
+     */
+    public function handleException($exception, array $error = null)
+    {
+        if (!$exception instanceof \Exception) {
+            $exception = new FatalThrowableError($exception);
+        }
+        $type = $exception instanceof FatalErrorException ? $exception->getSeverity() : E_ERROR;
+
+        if (($this->loggedErrors & $type) || $exception instanceof FatalThrowableError) {
+            $e = array(
+                'type' => $type,
+                'file' => $exception->getFile(),
+                'line' => $exception->getLine(),
+                'level' => error_reporting(),
+                'stack' => $exception->getTrace(),
+            );
+            if ($exception instanceof FatalErrorException) {
+                if ($exception instanceof FatalThrowableError) {
+                    $error = array(
+                        'type' => $type,
+                        'message' => $message = $exception->getMessage(),
+                        'file' => $e['file'],
+                        'line' => $e['line'],
+                    );
+                } else {
+                    $message = 'Fatal '.$exception->getMessage();
+                }
+            } elseif ($exception instanceof \ErrorException) {
+                $message = 'Uncaught '.$exception->getMessage();
+                if ($exception instanceof ContextErrorException) {
+                    $e['context'] = $exception->getContext();
+                }
+            } else {
+                $message = 'Uncaught Exception: '.$exception->getMessage();
+            }
+        }
+        if ($this->loggedErrors & $type) {
+            try {
+                $this->loggers[$type][0]->log($this->loggers[$type][1], $message, $e);
+            } catch (\Exception $handlerException) {
+            } catch (\Throwable $handlerException) {
+            }
+        }
+        if ($exception instanceof FatalErrorException && !$exception instanceof OutOfMemoryException && $error) {
+            foreach ($this->getFatalErrorHandlers() as $handler) {
+                if ($e = $handler->handleError($error, $exception)) {
+                    $exception = $e;
+                    break;
+                }
+            }
+        }
+        if (empty($this->exceptionHandler)) {
+            throw $exception; // Give back $exception to the native handler
+        }
+        try {
+            call_user_func($this->exceptionHandler, $exception);
+        } catch (\Exception $handlerException) {
+        } catch (\Throwable $handlerException) {
+        }
+        if (isset($handlerException)) {
+            $this->exceptionHandler = null;
+            $this->handleException($handlerException);
+        }
+    }
+
+    /**
+     * Shutdown registered function for handling PHP fatal errors.
+     *
+     * @param array $error An array as returned by error_get_last()
+     *
+     * @internal
+     */
+    public static function handleFatalError(array $error = null)
+    {
+        if (null === self::$reservedMemory) {
+            return;
+        }
+
+        self::$reservedMemory = null;
+
+        $handler = set_error_handler('var_dump');
+        $handler = is_array($handler) ? $handler[0] : null;
+        restore_error_handler();
+
+        if (!$handler instanceof self) {
+            return;
+        }
+
+        if (null === $error) {
+            $error = error_get_last();
+        }
+
+        try {
+            while (self::$stackedErrorLevels) {
+                static::unstackErrors();
+            }
+        } catch (\Exception $exception) {
+            // Handled below
+        } catch (\Throwable $exception) {
+            // Handled below
+        }
+
+        if ($error && $error['type'] &= E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR) {
+            // Let's not throw anymore but keep logging
+            $handler->throwAt(0, true);
+            $trace = isset($error['backtrace']) ? $error['backtrace'] : null;
+
+            if (0 === strpos($error['message'], 'Allowed memory') || 0 === strpos($error['message'], 'Out of memory')) {
+                $exception = new OutOfMemoryException($handler->levels[$error['type']].': '.$error['message'], 0, $error['type'], $error['file'], $error['line'], 2, false, $trace);
+            } else {
+                $exception = new FatalErrorException($handler->levels[$error['type']].': '.$error['message'], 0, $error['type'], $error['file'], $error['line'], 2, true, $trace);
+            }
+        } elseif (!isset($exception)) {
+            return;
+        }
+
+        try {
+            $handler->handleException($exception, $error);
+        } catch (FatalErrorException $e) {
+            // Ignore this re-throw
+        }
+    }
+
+    /**
+     * Configures the error handler for delayed handling.
+     * Ensures also that non-catchable fatal errors are never silenced.
+     *
+     * As shown by http://bugs.php.net/42098 and http://bugs.php.net/60724
+     * PHP has a compile stage where it behaves unusually. To workaround it,
+     * we plug an error handler that only stacks errors for later.
+     *
+     * The most important feature of this is to prevent
+     * autoloading until unstackErrors() is called.
+     */
+    public static function stackErrors()
+    {
+        self::$stackedErrorLevels[] = error_reporting(error_reporting() | E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR);
+    }
+
+    /**
+     * Unstacks stacked errors and forwards to the logger.
+     */
+    public static function unstackErrors()
+    {
+        $level = array_pop(self::$stackedErrorLevels);
+
+        if (null !== $level) {
+            $e = error_reporting($level);
+            if ($e !== ($level | E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR)) {
+                // If the user changed the error level, do not overwrite it
+                error_reporting($e);
+            }
+        }
+
+        if (empty(self::$stackedErrorLevels)) {
+            $errors = self::$stackedErrors;
+            self::$stackedErrors = array();
+
+            foreach ($errors as $e) {
+                $e[0]->log($e[1], $e[2], $e[3]);
+            }
+        }
+    }
+
+    /**
+     * Gets the fatal error handlers.
+     *
+     * Override this method if you want to define more fatal error handlers.
+     *
+     * @return FatalErrorHandlerInterface[] An array of FatalErrorHandlerInterface
+     */
+    protected function getFatalErrorHandlers()
+    {
+        return array(
+            new UndefinedFunctionFatalErrorHandler(),
+            new UndefinedMethodFatalErrorHandler(),
+            new ClassNotFoundFatalErrorHandler(),
+        );
+    }
+
+    /**
+     * Sets the level at which the conversion to Exception is done.
+     *
+     * @param int|null $level The level (null to use the error_reporting() value and 0 to disable)
+     *
+     * @deprecated since version 2.6, to be removed in 3.0. Use throwAt() instead.
+     */
+    public function setLevel($level)
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since version 2.6 and will be removed in 3.0. Use the throwAt() method instead.', E_USER_DEPRECATED);
+
+        $level = null === $level ? error_reporting() : $level;
+        $this->throwAt($level, true);
+    }
+
+    /**
+     * Sets the display_errors flag value.
+     *
+     * @param int $displayErrors The display_errors flag value
+     *
+     * @deprecated since version 2.6, to be removed in 3.0. Use throwAt() instead.
+     */
+    public function setDisplayErrors($displayErrors)
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since version 2.6 and will be removed in 3.0. Use the throwAt() method instead.', E_USER_DEPRECATED);
+
+        if ($displayErrors) {
+            $this->throwAt($this->displayErrors, true);
+        } else {
+            $displayErrors = $this->displayErrors;
+            $this->throwAt(0, true);
+            $this->displayErrors = $displayErrors;
+        }
+    }
+
+    /**
+     * Sets a logger for the given channel.
+     *
+     * @param LoggerInterface $logger  A logger interface
+     * @param string          $channel The channel associated with the logger (deprecation, emergency or scream)
+     *
+     * @deprecated since version 2.6, to be removed in 3.0. Use setLoggers() or setDefaultLogger() instead.
+     */
+    public static function setLogger(LoggerInterface $logger, $channel = 'deprecation')
+    {
+        @trigger_error('The '.__METHOD__.' static method is deprecated since version 2.6 and will be removed in 3.0. Use the setLoggers() or setDefaultLogger() methods instead.', E_USER_DEPRECATED);
+
+        $handler = set_error_handler('var_dump');
+        $handler = is_array($handler) ? $handler[0] : null;
+        restore_error_handler();
+        if (!$handler instanceof self) {
+            return;
+        }
+        if ('deprecation' === $channel) {
+            $handler->setDefaultLogger($logger, E_DEPRECATED | E_USER_DEPRECATED, true);
+            $handler->screamAt(E_DEPRECATED | E_USER_DEPRECATED);
+        } elseif ('scream' === $channel) {
+            $handler->setDefaultLogger($logger, E_ALL | E_STRICT, false);
+            $handler->screamAt(E_ALL | E_STRICT);
+        } elseif ('emergency' === $channel) {
+            $handler->setDefaultLogger($logger, E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR, true);
+            $handler->screamAt(E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR);
+        }
+    }
+
+    /**
+     * @deprecated since version 2.6, to be removed in 3.0. Use handleError() instead.
+     */
+    public function handle($level, $message, $file = 'unknown', $line = 0, $context = array())
+    {
+        $this->handleError(E_USER_DEPRECATED, 'The '.__METHOD__.' method is deprecated since version 2.6 and will be removed in 3.0. Use the handleError() method instead.', __FILE__, __LINE__, array());
+
+        return $this->handleError($level, $message, $file, $line, (array) $context);
+    }
+
+    /**
+     * Handles PHP fatal errors.
+     *
+     * @deprecated since version 2.6, to be removed in 3.0. Use handleFatalError() instead.
+     */
+    public function handleFatal()
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since version 2.6 and will be removed in 3.0. Use the handleFatalError() method instead.', E_USER_DEPRECATED);
+
+        static::handleFatalError();
+    }
+}
+
+/**
+ * Private class used to work around https://bugs.php.net/54275.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+class ErrorHandlerCanary
+{
+    private static $displayErrors = null;
+
+    public function __construct()
+    {
+        if (null === self::$displayErrors) {
+            self::$displayErrors = ini_set('display_errors', 1);
+        }
+    }
+
+    public function __destruct()
+    {
+        if (null !== self::$displayErrors) {
+            ini_set('display_errors', self::$displayErrors);
+            self::$displayErrors = null;
+        }
+    }
+}
--- a/web/vendor/symfony/debug/Exception/ClassNotFoundException.php
+++ b/web/vendor/symfony/debug/Exception/ClassNotFoundException.php
@ -0,0 +1,33 @@
+<?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\Debug\Exception;
+
+/**
+ * Class (or Trait or Interface) Not Found Exception.
+ *
+ * @author Konstanton Myakshin <koc-dp@yandex.ru>
+ */
+class ClassNotFoundException extends FatalErrorException
+{
+    public function __construct($message, \ErrorException $previous)
+    {
+        parent::__construct(
+            $message,
+            $previous->getCode(),
+            $previous->getSeverity(),
+            $previous->getFile(),
+            $previous->getLine(),
+            $previous->getPrevious()
+        );
+        $this->setTrace($previous->getTrace());
+    }
+}
--- a/web/vendor/symfony/debug/Exception/ContextErrorException.php
+++ b/web/vendor/symfony/debug/Exception/ContextErrorException.php
@ -0,0 +1,36 @@
+<?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\Debug\Exception;
+
+/**
+ * Error Exception with Variable Context.
+ *
+ * @author Christian Sciberras <uuf6429@gmail.com>
+ */
+class ContextErrorException extends \ErrorException
+{
+    private $context = array();
+
+    public function __construct($message, $code, $severity, $filename, $lineno, $context = array())
+    {
+        parent::__construct($message, $code, $severity, $filename, $lineno);
+        $this->context = $context;
+    }
+
+    /**
+     * @return array Array of variables that existed when the exception occurred
+     */
+    public function getContext()
+    {
+        return $this->context;
+    }
+}
--- a/web/vendor/symfony/debug/Exception/DummyException.php
+++ b/web/vendor/symfony/debug/Exception/DummyException.php
@ -0,0 +1,23 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Debug\Exception;
+
+@trigger_error('The '.__NAMESPACE__.'\DummyException class is deprecated since version 2.5 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since version 2.5, to be removed in 3.0.
+ */
+class DummyException extends \ErrorException
+{
+}
--- a/web/vendor/symfony/debug/Exception/FatalErrorException.php
+++ b/web/vendor/symfony/debug/Exception/FatalErrorException.php
@ -0,0 +1,99 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpKernel\Exception;
+
+/**
+ * Fatal Error Exception.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Konstanton Myakshin <koc-dp@yandex.ru>
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @deprecated Deprecated in 2.3, to be removed in 3.0. Use the same class from the Debug component instead.
+ */
+class FatalErrorException extends \ErrorException
+{
+}
+
+namespace Symfony\Component\Debug\Exception;
+
+use Symfony\Component\HttpKernel\Exception\FatalErrorException as LegacyFatalErrorException;
+
+/**
+ * Fatal Error Exception.
+ *
+ * @author Konstanton Myakshin <koc-dp@yandex.ru>
+ */
+class FatalErrorException extends LegacyFatalErrorException
+{
+    public function __construct($message, $code, $severity, $filename, $lineno, $traceOffset = null, $traceArgs = true, array $trace = null)
+    {
+        parent::__construct($message, $code, $severity, $filename, $lineno);
+
+        if (null !== $trace) {
+            if (!$traceArgs) {
+                foreach ($trace as &$frame) {
+                    unset($frame['args'], $frame['this'], $frame);
+                }
+            }
+
+            $this->setTrace($trace);
+        } elseif (null !== $traceOffset) {
+            if (function_exists('xdebug_get_function_stack')) {
+                $trace = xdebug_get_function_stack();
+                if (0 < $traceOffset) {
+                    array_splice($trace, -$traceOffset);
+                }
+
+                foreach ($trace as &$frame) {
+                    if (!isset($frame['type'])) {
+                        // XDebug pre 2.1.1 doesn't currently set the call type key http://bugs.xdebug.org/view.php?id=695
+                        if (isset($frame['class'])) {
+                            $frame['type'] = '::';
+                        }
+                    } elseif ('dynamic' === $frame['type']) {
+                        $frame['type'] = '->';
+                    } elseif ('static' === $frame['type']) {
+                        $frame['type'] = '::';
+                    }
+
+                    // XDebug also has a different name for the parameters array
+                    if (!$traceArgs) {
+                        unset($frame['params'], $frame['args']);
+                    } elseif (isset($frame['params']) && !isset($frame['args'])) {
+                        $frame['args'] = $frame['params'];
+                        unset($frame['params']);
+                    }
+                }
+
+                unset($frame);
+                $trace = array_reverse($trace);
+            } elseif (function_exists('symfony_debug_backtrace')) {
+                $trace = symfony_debug_backtrace();
+                if (0 < $traceOffset) {
+                    array_splice($trace, 0, $traceOffset);
+                }
+            } else {
+                $trace = array();
+            }
+
+            $this->setTrace($trace);
+        }
+    }
+
+    protected function setTrace($trace)
+    {
+        $traceReflector = new \ReflectionProperty('Exception', 'trace');
+        $traceReflector->setAccessible(true);
+        $traceReflector->setValue($this, $trace);
+    }
+}
--- a/web/vendor/symfony/debug/Exception/FatalThrowableError.php
+++ b/web/vendor/symfony/debug/Exception/FatalThrowableError.php
@ -0,0 +1,44 @@
+<?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\Debug\Exception;
+
+/**
+ * Fatal Throwable Error.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class FatalThrowableError extends FatalErrorException
+{
+    public function __construct(\Throwable $e)
+    {
+        if ($e instanceof \ParseError) {
+            $message = 'Parse error: '.$e->getMessage();
+            $severity = E_PARSE;
+        } elseif ($e instanceof \TypeError) {
+            $message = 'Type error: '.$e->getMessage();
+            $severity = E_RECOVERABLE_ERROR;
+        } else {
+            $message = $e->getMessage();
+            $severity = E_ERROR;
+        }
+
+        \ErrorException::__construct(
+            $message,
+            $e->getCode(),
+            $severity,
+            $e->getFile(),
+            $e->getLine()
+        );
+
+        $this->setTrace($e->getTrace());
+    }
+}
--- a/web/vendor/symfony/debug/Exception/FlattenException.php
+++ b/web/vendor/symfony/debug/Exception/FlattenException.php
@ -0,0 +1,297 @@
+<?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\HttpKernel\Exception;
+
+use Symfony\Component\Debug\Exception\FlattenException as DebugFlattenException;
+
+/**
+ * FlattenException wraps a PHP Exception to be able to serialize it.
+ *
+ * Basically, this class removes all objects from the trace.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated Deprecated in 2.3, to be removed in 3.0. Use the same class from the Debug component instead.
+ */
+class FlattenException
+{
+    private $handler;
+
+    public static function __callStatic($method, $args)
+    {
+        if (!method_exists('Symfony\Component\Debug\Exception\FlattenException', $method)) {
+            throw new \BadMethodCallException(sprintf('Call to undefined method %s::%s()', get_called_class(), $method));
+        }
+
+        return call_user_func_array(array('Symfony\Component\Debug\Exception\FlattenException', $method), $args);
+    }
+
+    public function __call($method, $args)
+    {
+        if (!isset($this->handler)) {
+            $this->handler = new DebugFlattenException();
+        }
+
+        if (!method_exists($this->handler, $method)) {
+            throw new \BadMethodCallException(sprintf('Call to undefined method %s::%s()', get_class($this), $method));
+        }
+
+        return call_user_func_array(array($this->handler, $method), $args);
+    }
+}
+
+namespace Symfony\Component\Debug\Exception;
+
+use Symfony\Component\HttpKernel\Exception\FlattenException as LegacyFlattenException;
+use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
+
+/**
+ * FlattenException wraps a PHP Exception to be able to serialize it.
+ *
+ * Basically, this class removes all objects from the trace.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class FlattenException extends LegacyFlattenException
+{
+    private $message;
+    private $code;
+    private $previous;
+    private $trace;
+    private $class;
+    private $statusCode;
+    private $headers;
+    private $file;
+    private $line;
+
+    public static function create(\Exception $exception, $statusCode = null, array $headers = array())
+    {
+        $e = new static();
+        $e->setMessage($exception->getMessage());
+        $e->setCode($exception->getCode());
+
+        if ($exception instanceof HttpExceptionInterface) {
+            $statusCode = $exception->getStatusCode();
+            $headers = array_merge($headers, $exception->getHeaders());
+        }
+
+        if (null === $statusCode) {
+            $statusCode = 500;
+        }
+
+        $e->setStatusCode($statusCode);
+        $e->setHeaders($headers);
+        $e->setTraceFromException($exception);
+        $e->setClass(get_class($exception));
+        $e->setFile($exception->getFile());
+        $e->setLine($exception->getLine());
+
+        $previous = $exception->getPrevious();
+
+        if ($previous instanceof \Exception) {
+            $e->setPrevious(static::create($previous));
+        } elseif ($previous instanceof \Throwable) {
+            $e->setPrevious(static::create(new FatalThrowableError($previous)));
+        }
+
+        return $e;
+    }
+
+    public function toArray()
+    {
+        $exceptions = array();
+        foreach (array_merge(array($this), $this->getAllPrevious()) as $exception) {
+            $exceptions[] = array(
+                'message' => $exception->getMessage(),
+                'class' => $exception->getClass(),
+                'trace' => $exception->getTrace(),
+            );
+        }
+
+        return $exceptions;
+    }
+
+    public function getStatusCode()
+    {
+        return $this->statusCode;
+    }
+
+    public function setStatusCode($code)
+    {
+        $this->statusCode = $code;
+    }
+
+    public function getHeaders()
+    {
+        return $this->headers;
+    }
+
+    public function setHeaders(array $headers)
+    {
+        $this->headers = $headers;
+    }
+
+    public function getClass()
+    {
+        return $this->class;
+    }
+
+    public function setClass($class)
+    {
+        $this->class = $class;
+    }
+
+    public function getFile()
+    {
+        return $this->file;
+    }
+
+    public function setFile($file)
+    {
+        $this->file = $file;
+    }
+
+    public function getLine()
+    {
+        return $this->line;
+    }
+
+    public function setLine($line)
+    {
+        $this->line = $line;
+    }
+
+    public function getMessage()
+    {
+        return $this->message;
+    }
+
+    public function setMessage($message)
+    {
+        $this->message = $message;
+    }
+
+    public function getCode()
+    {
+        return $this->code;
+    }
+
+    public function setCode($code)
+    {
+        $this->code = $code;
+    }
+
+    public function getPrevious()
+    {
+        return $this->previous;
+    }
+
+    public function setPrevious(FlattenException $previous)
+    {
+        $this->previous = $previous;
+    }
+
+    public function getAllPrevious()
+    {
+        $exceptions = array();
+        $e = $this;
+        while ($e = $e->getPrevious()) {
+            $exceptions[] = $e;
+        }
+
+        return $exceptions;
+    }
+
+    public function getTrace()
+    {
+        return $this->trace;
+    }
+
+    public function setTraceFromException(\Exception $exception)
+    {
+        $this->setTrace($exception->getTrace(), $exception->getFile(), $exception->getLine());
+    }
+
+    public function setTrace($trace, $file, $line)
+    {
+        $this->trace = array();
+        $this->trace[] = array(
+            'namespace' => '',
+            'short_class' => '',
+            'class' => '',
+            'type' => '',
+            'function' => '',
+            'file' => $file,
+            'line' => $line,
+            'args' => array(),
+        );
+        foreach ($trace as $entry) {
+            $class = '';
+            $namespace = '';
+            if (isset($entry['class'])) {
+                $parts = explode('\\', $entry['class']);
+                $class = array_pop($parts);
+                $namespace = implode('\\', $parts);
+            }
+
+            $this->trace[] = array(
+                'namespace' => $namespace,
+                'short_class' => $class,
+                'class' => isset($entry['class']) ? $entry['class'] : '',
+                'type' => isset($entry['type']) ? $entry['type'] : '',
+                'function' => isset($entry['function']) ? $entry['function'] : null,
+                'file' => isset($entry['file']) ? $entry['file'] : null,
+                'line' => isset($entry['line']) ? $entry['line'] : null,
+                'args' => isset($entry['args']) ? $this->flattenArgs($entry['args']) : array(),
+            );
+        }
+    }
+
+    private function flattenArgs($args, $level = 0, &$count = 0)
+    {
+        $result = array();
+        foreach ($args as $key => $value) {
+            if (++$count > 1e4) {
+                return array('array', '*SKIPPED over 10000 entries*');
+            }
+            if ($value instanceof \__PHP_Incomplete_Class) {
+                // is_object() returns false on PHP<=7.1
+                $result[$key] = array('incomplete-object', $this->getClassNameFromIncomplete($value));
+            } elseif (is_object($value)) {
+                $result[$key] = array('object', get_class($value));
+            } elseif (is_array($value)) {
+                if ($level > 10) {
+                    $result[$key] = array('array', '*DEEP NESTED ARRAY*');
+                } else {
+                    $result[$key] = array('array', $this->flattenArgs($value, $level + 1, $count));
+                }
+            } elseif (null === $value) {
+                $result[$key] = array('null', null);
+            } elseif (is_bool($value)) {
+                $result[$key] = array('boolean', $value);
+            } elseif (is_resource($value)) {
+                $result[$key] = array('resource', get_resource_type($value));
+            } else {
+                $result[$key] = array('string', (string) $value);
+            }
+        }
+
+        return $result;
+    }
+
+    private function getClassNameFromIncomplete(\__PHP_Incomplete_Class $value)
+    {
+        $array = new \ArrayObject($value);
+
+        return $array['__PHP_Incomplete_Class_Name'];
+    }
+}
--- a/web/vendor/symfony/debug/Exception/OutOfMemoryException.php
+++ b/web/vendor/symfony/debug/Exception/OutOfMemoryException.php
@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Debug\Exception;
+
+/**
+ * Out of memory exception.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class OutOfMemoryException extends FatalErrorException
+{
+}
--- a/web/vendor/symfony/debug/Exception/UndefinedFunctionException.php
+++ b/web/vendor/symfony/debug/Exception/UndefinedFunctionException.php
@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Debug\Exception;
+
+/**
+ * Undefined Function Exception.
+ *
+ * @author Konstanton Myakshin <koc-dp@yandex.ru>
+ */
+class UndefinedFunctionException extends FatalErrorException
+{
+    public function __construct($message, \ErrorException $previous)
+    {
+        parent::__construct(
+            $message,
+            $previous->getCode(),
+            $previous->getSeverity(),
+            $previous->getFile(),
+            $previous->getLine(),
+            $previous->getPrevious()
+        );
+        $this->setTrace($previous->getTrace());
+    }
+}
--- a/web/vendor/symfony/debug/Exception/UndefinedMethodException.php
+++ b/web/vendor/symfony/debug/Exception/UndefinedMethodException.php
@ -0,0 +1,33 @@
+<?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\Debug\Exception;
+
+/**
+ * Undefined Method Exception.
+ *
+ * @author Grégoire Pineau <lyrixx@lyrixx.info>
+ */
+class UndefinedMethodException extends FatalErrorException
+{
+    public function __construct($message, \ErrorException $previous)
+    {
+        parent::__construct(
+            $message,
+            $previous->getCode(),
+            $previous->getSeverity(),
+            $previous->getFile(),
+            $previous->getLine(),
+            $previous->getPrevious()
+        );
+        $this->setTrace($previous->getTrace());
+    }
+}
--- a/web/vendor/symfony/debug/ExceptionHandler.php
+++ b/web/vendor/symfony/debug/ExceptionHandler.php
@ -0,0 +1,496 @@
+<?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\Debug;
+
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Debug\Exception\FlattenException;
+use Symfony\Component\Debug\Exception\OutOfMemoryException;
+
+/**
+ * ExceptionHandler converts an exception to a Response object.
+ *
+ * It is mostly useful in debug mode to replace the default PHP/XDebug
+ * output with something prettier and more useful.
+ *
+ * As this class is mainly used during Kernel boot, where nothing is yet
+ * available, the Response content is always HTML.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ExceptionHandler
+{
+    private $debug;
+    private $charset;
+    private $handler;
+    private $caughtBuffer;
+    private $caughtLength;
+    private $fileLinkFormat;
+
+    public function __construct($debug = true, $charset = null, $fileLinkFormat = null)
+    {
+        if (false !== strpos($charset, '%')) {
+            @trigger_error('Providing $fileLinkFormat as second argument to '.__METHOD__.' is deprecated since version 2.8 and will be unsupported in 3.0. Please provide it as third argument, after $charset.', E_USER_DEPRECATED);
+
+            // Swap $charset and $fileLinkFormat for BC reasons
+            $pivot = $fileLinkFormat;
+            $fileLinkFormat = $charset;
+            $charset = $pivot;
+        }
+        $this->debug = $debug;
+        $this->charset = $charset ?: ini_get('default_charset') ?: 'UTF-8';
+        $this->fileLinkFormat = $fileLinkFormat ?: ini_get('xdebug.file_link_format') ?: get_cfg_var('xdebug.file_link_format');
+    }
+
+    /**
+     * Registers the exception handler.
+     *
+     * @param bool        $debug          Enable/disable debug mode, where the stack trace is displayed
+     * @param string|null $charset        The charset used by exception messages
+     * @param string|null $fileLinkFormat The IDE link template
+     *
+     * @return static
+     */
+    public static function register($debug = true, $charset = null, $fileLinkFormat = null)
+    {
+        $handler = new static($debug, $charset, $fileLinkFormat);
+
+        $prev = set_exception_handler(array($handler, 'handle'));
+        if (is_array($prev) && $prev[0] instanceof ErrorHandler) {
+            restore_exception_handler();
+            $prev[0]->setExceptionHandler(array($handler, 'handle'));
+        }
+
+        return $handler;
+    }
+
+    /**
+     * Sets a user exception handler.
+     *
+     * @param callable $handler An handler that will be called on Exception
+     *
+     * @return callable|null The previous exception handler if any
+     */
+    public function setHandler($handler)
+    {
+        if (null !== $handler && !is_callable($handler)) {
+            throw new \LogicException('The exception handler must be a valid PHP callable.');
+        }
+        $old = $this->handler;
+        $this->handler = $handler;
+
+        return $old;
+    }
+
+    /**
+     * Sets the format for links to source files.
+     *
+     * @param string $format The format for links to source files
+     *
+     * @return string The previous file link format
+     */
+    public function setFileLinkFormat($format)
+    {
+        $old = $this->fileLinkFormat;
+        $this->fileLinkFormat = $format;
+
+        return $old;
+    }
+
+    /**
+     * Sends a response for the given Exception.
+     *
+     * To be as fail-safe as possible, the exception is first handled
+     * by our simple exception handler, then by the user exception handler.
+     * The latter takes precedence and any output from the former is cancelled,
+     * if and only if nothing bad happens in this handling path.
+     */
+    public function handle(\Exception $exception)
+    {
+        if (null === $this->handler || $exception instanceof OutOfMemoryException) {
+            $this->failSafeHandle($exception);
+
+            return;
+        }
+
+        $caughtLength = $this->caughtLength = 0;
+
+        ob_start(array($this, 'catchOutput'));
+        $this->failSafeHandle($exception);
+        while (null === $this->caughtBuffer && ob_end_flush()) {
+            // Empty loop, everything is in the condition
+        }
+        if (isset($this->caughtBuffer[0])) {
+            ob_start(array($this, 'cleanOutput'));
+            echo $this->caughtBuffer;
+            $caughtLength = ob_get_length();
+        }
+        $this->caughtBuffer = null;
+
+        try {
+            call_user_func($this->handler, $exception);
+            $this->caughtLength = $caughtLength;
+        } catch (\Exception $e) {
+            if (!$caughtLength) {
+                // All handlers failed. Let PHP handle that now.
+                throw $exception;
+            }
+        }
+    }
+
+    /**
+     * Sends a response for the given Exception.
+     *
+     * If you have the Symfony HttpFoundation component installed,
+     * this method will use it to create and send the response. If not,
+     * it will fallback to plain PHP functions.
+     *
+     * @param \Exception $exception An \Exception instance
+     */
+    private function failSafeHandle(\Exception $exception)
+    {
+        if (class_exists('Symfony\Component\HttpFoundation\Response', false)
+            && __CLASS__ !== get_class($this)
+            && ($reflector = new \ReflectionMethod($this, 'createResponse'))
+            && __CLASS__ !== $reflector->class
+        ) {
+            $response = $this->createResponse($exception);
+            $response->sendHeaders();
+            $response->sendContent();
+            @trigger_error(sprintf("The %s::createResponse method is deprecated since 2.8 and won't be called anymore when handling an exception in 3.0.", $reflector->class), E_USER_DEPRECATED);
+
+            return;
+        }
+
+        $this->sendPhpResponse($exception);
+    }
+
+    /**
+     * Sends the error associated with the given Exception as a plain PHP response.
+     *
+     * This method uses plain PHP functions like header() and echo to output
+     * the response.
+     *
+     * @param \Exception|FlattenException $exception An \Exception or FlattenException instance
+     */
+    public function sendPhpResponse($exception)
+    {
+        if (!$exception instanceof FlattenException) {
+            $exception = FlattenException::create($exception);
+        }
+
+        if (!headers_sent()) {
+            header(sprintf('HTTP/1.0 %s', $exception->getStatusCode()));
+            foreach ($exception->getHeaders() as $name => $value) {
+                header($name.': '.$value, false);
+            }
+            header('Content-Type: text/html; charset='.$this->charset);
+        }
+
+        echo $this->decorate($this->getContent($exception), $this->getStylesheet($exception));
+    }
+
+    /**
+     * Creates the error Response associated with the given Exception.
+     *
+     * @param \Exception|FlattenException $exception An \Exception or FlattenException instance
+     *
+     * @return Response A Response instance
+     *
+     * @deprecated since 2.8, to be removed in 3.0.
+     */
+    public function createResponse($exception)
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+        if (!$exception instanceof FlattenException) {
+            $exception = FlattenException::create($exception);
+        }
+
+        return Response::create($this->getHtml($exception), $exception->getStatusCode(), $exception->getHeaders())->setCharset($this->charset);
+    }
+
+    /**
+     * Gets the full HTML content associated with the given exception.
+     *
+     * @param \Exception|FlattenException $exception An \Exception or FlattenException instance
+     *
+     * @return string The HTML content as a string
+     */
+    public function getHtml($exception)
+    {
+        if (!$exception instanceof FlattenException) {
+            $exception = FlattenException::create($exception);
+        }
+
+        return $this->decorate($this->getContent($exception), $this->getStylesheet($exception));
+    }
+
+    /**
+     * Gets the HTML content associated with the given exception.
+     *
+     * @param FlattenException $exception A FlattenException instance
+     *
+     * @return string The content as a string
+     */
+    public function getContent(FlattenException $exception)
+    {
+        switch ($exception->getStatusCode()) {
+            case 404:
+                $title = 'Sorry, the page you are looking for could not be found.';
+                break;
+            default:
+                $title = 'Whoops, looks like something went wrong.';
+        }
+
+        $content = '';
+        if ($this->debug) {
+            try {
+                $count = count($exception->getAllPrevious());
+                $total = $count + 1;
+                foreach ($exception->toArray() as $position => $e) {
+                    $ind = $count - $position + 1;
+                    $class = $this->formatClass($e['class']);
+                    $message = nl2br($this->escapeHtml($e['message']));
+                    $content .= sprintf(<<<'EOF'
+                        <h2 class="block_exception clear_fix">
+                            <span class="exception_counter">%d/%d</span>
+                            <span class="exception_title">%s%s:</span>
+                            <span class="exception_message">%s</span>
+                        </h2>
+                        <div class="block">
+                            <ol class="traces list_exception">
+
+EOF
+                        , $ind, $total, $class, $this->formatPath($e['trace'][0]['file'], $e['trace'][0]['line']), $message);
+                    foreach ($e['trace'] as $trace) {
+                        $content .= '       <li>';
+                        if ($trace['function']) {
+                            $content .= sprintf('at %s%s%s(%s)', $this->formatClass($trace['class']), $trace['type'], $trace['function'], $this->formatArgs($trace['args']));
+                        }
+                        if (isset($trace['file']) && isset($trace['line'])) {
+                            $content .= $this->formatPath($trace['file'], $trace['line']);
+                        }
+                        $content .= "</li>\n";
+                    }
+
+                    $content .= "    </ol>\n</div>\n";
+                }
+            } catch (\Exception $e) {
+                // something nasty happened and we cannot throw an exception anymore
+                if ($this->debug) {
+                    $title = sprintf('Exception thrown when handling an exception (%s: %s)', get_class($e), $this->escapeHtml($e->getMessage()));
+                } else {
+                    $title = 'Whoops, looks like something went wrong.';
+                }
+            }
+        }
+
+        return <<<EOF
+            <div id="sf-resetcontent" class="sf-reset">
+                <h1>$title</h1>
+                $content
+            </div>
+EOF;
+    }
+
+    /**
+     * Gets the stylesheet associated with the given exception.
+     *
+     * @param FlattenException $exception A FlattenException instance
+     *
+     * @return string The stylesheet as a string
+     */
+    public function getStylesheet(FlattenException $exception)
+    {
+        return <<<'EOF'
+            .sf-reset { font: 11px Verdana, Arial, sans-serif; color: #333 }
+            .sf-reset .clear { clear:both; height:0; font-size:0; line-height:0; }
+            .sf-reset .clear_fix:after { display:block; height:0; clear:both; visibility:hidden; }
+            .sf-reset .clear_fix { display:inline-block; }
+            .sf-reset * html .clear_fix { height:1%; }
+            .sf-reset .clear_fix { display:block; }
+            .sf-reset, .sf-reset .block { margin: auto }
+            .sf-reset abbr { border-bottom: 1px dotted #000; cursor: help; }
+            .sf-reset p { font-size:14px; line-height:20px; color:#868686; padding-bottom:20px }
+            .sf-reset strong { font-weight:bold; }
+            .sf-reset a { color:#6c6159; cursor: default; }
+            .sf-reset a img { border:none; }
+            .sf-reset a:hover { text-decoration:underline; }
+            .sf-reset em { font-style:italic; }
+            .sf-reset h1, .sf-reset h2 { font: 20px Georgia, "Times New Roman", Times, serif }
+            .sf-reset .exception_counter { background-color: #fff; color: #333; padding: 6px; float: left; margin-right: 10px; float: left; display: block; }
+            .sf-reset .exception_title { margin-left: 3em; margin-bottom: 0.7em; display: block; }
+            .sf-reset .exception_message { margin-left: 3em; display: block; }
+            .sf-reset .traces li { font-size:12px; padding: 2px 4px; list-style-type:decimal; margin-left:20px; }
+            .sf-reset .block { background-color:#FFFFFF; padding:10px 28px; margin-bottom:20px;
+                -webkit-border-bottom-right-radius: 16px;
+                -webkit-border-bottom-left-radius: 16px;
+                -moz-border-radius-bottomright: 16px;
+                -moz-border-radius-bottomleft: 16px;
+                border-bottom-right-radius: 16px;
+                border-bottom-left-radius: 16px;
+                border-bottom:1px solid #ccc;
+                border-right:1px solid #ccc;
+                border-left:1px solid #ccc;
+                word-wrap: break-word;
+            }
+            .sf-reset .block_exception { background-color:#ddd; color: #333; padding:20px;
+                -webkit-border-top-left-radius: 16px;
+                -webkit-border-top-right-radius: 16px;
+                -moz-border-radius-topleft: 16px;
+                -moz-border-radius-topright: 16px;
+                border-top-left-radius: 16px;
+                border-top-right-radius: 16px;
+                border-top:1px solid #ccc;
+                border-right:1px solid #ccc;
+                border-left:1px solid #ccc;
+                overflow: hidden;
+                word-wrap: break-word;
+            }
+            .sf-reset a { background:none; color:#868686; text-decoration:none; }
+            .sf-reset a:hover { background:none; color:#313131; text-decoration:underline; }
+            .sf-reset ol { padding: 10px 0; }
+            .sf-reset h1 { background-color:#FFFFFF; padding: 15px 28px; margin-bottom: 20px;
+                -webkit-border-radius: 10px;
+                -moz-border-radius: 10px;
+                border-radius: 10px;
+                border: 1px solid #ccc;
+            }
+EOF;
+    }
+
+    private function decorate($content, $css)
+    {
+        return <<<EOF
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="{$this->charset}" />
+        <meta name="robots" content="noindex,nofollow" />
+        <style>
+            /* Copyright (c) 2010, Yahoo! Inc. All rights reserved. Code licensed under the BSD License: http://developer.yahoo.com/yui/license.html */
+            html{color:#000;background:#FFF;}body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td{margin:0;padding:0;}table{border-collapse:collapse;border-spacing:0;}fieldset,img{border:0;}address,caption,cite,code,dfn,em,strong,th,var{font-style:normal;font-weight:normal;}li{list-style:none;}caption,th{text-align:left;}h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal;}q:before,q:after{content:'';}abbr,acronym{border:0;font-variant:normal;}sup{vertical-align:text-top;}sub{vertical-align:text-bottom;}input,textarea,select{font-family:inherit;font-size:inherit;font-weight:inherit;}input,textarea,select{*font-size:100%;}legend{color:#000;}
+
+            html { background: #eee; padding: 10px }
+            img { border: 0; }
+            #sf-resetcontent { width:970px; margin:0 auto; }
+            $css
+        </style>
+    </head>
+    <body>
+        $content
+    </body>
+</html>
+EOF;
+    }
+
+    private function formatClass($class)
+    {
+        $parts = explode('\\', $class);
+
+        return sprintf('<abbr title="%s">%s</abbr>', $class, array_pop($parts));
+    }
+
+    private function formatPath($path, $line)
+    {
+        $path = $this->escapeHtml($path);
+        $file = preg_match('#[^/\\\\]*$#', $path, $file) ? $file[0] : $path;
+
+        if ($linkFormat = $this->fileLinkFormat) {
+            $link = strtr($this->escapeHtml($linkFormat), array('%f' => $path, '%l' => (int) $line));
+
+            return sprintf(' in <a href="%s" title="Go to source">%s line %d</a>', $link, $file, $line);
+        }
+
+        return sprintf(' in <a title="%s line %3$d" ondblclick="var f=this.innerHTML;this.innerHTML=this.title;this.title=f;">%s line %d</a>', $path, $file, $line);
+    }
+
+    /**
+     * Formats an array as a string.
+     *
+     * @param array $args The argument array
+     *
+     * @return string
+     */
+    private function formatArgs(array $args)
+    {
+        $result = array();
+        foreach ($args as $key => $item) {
+            if ('object' === $item[0]) {
+                $formattedValue = sprintf('<em>object</em>(%s)', $this->formatClass($item[1]));
+            } elseif ('array' === $item[0]) {
+                $formattedValue = sprintf('<em>array</em>(%s)', is_array($item[1]) ? $this->formatArgs($item[1]) : $item[1]);
+            } elseif ('string' === $item[0]) {
+                $formattedValue = sprintf("'%s'", $this->escapeHtml($item[1]));
+            } elseif ('null' === $item[0]) {
+                $formattedValue = '<em>null</em>';
+            } elseif ('boolean' === $item[0]) {
+                $formattedValue = '<em>'.strtolower(var_export($item[1], true)).'</em>';
+            } elseif ('resource' === $item[0]) {
+                $formattedValue = '<em>resource</em>';
+            } else {
+                $formattedValue = str_replace("\n", '', var_export($this->escapeHtml((string) $item[1]), true));
+            }
+
+            $result[] = is_int($key) ? $formattedValue : sprintf("'%s' => %s", $key, $formattedValue);
+        }
+
+        return implode(', ', $result);
+    }
+
+    /**
+     * Returns an UTF-8 and HTML encoded string.
+     *
+     * @deprecated since version 2.7, to be removed in 3.0.
+     */
+    protected static function utf8Htmlize($str)
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since version 2.7 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+        return htmlspecialchars($str, ENT_QUOTES | (PHP_VERSION_ID >= 50400 ? ENT_SUBSTITUTE : 0), 'UTF-8');
+    }
+
+    /**
+     * HTML-encodes a string.
+     */
+    private function escapeHtml($str)
+    {
+        return htmlspecialchars($str, ENT_QUOTES | (PHP_VERSION_ID >= 50400 ? ENT_SUBSTITUTE : 0), $this->charset);
+    }
+
+    /**
+     * @internal
+     */
+    public function catchOutput($buffer)
+    {
+        $this->caughtBuffer = $buffer;
+
+        return '';
+    }
+
+    /**
+     * @internal
+     */
+    public function cleanOutput($buffer)
+    {
+        if ($this->caughtLength) {
+            // use substr_replace() instead of substr() for mbstring overloading resistance
+            $cleanBuffer = substr_replace($buffer, '', 0, $this->caughtLength);
+            if (isset($cleanBuffer[0])) {
+                $buffer = $cleanBuffer;
+            }
+        }
+
+        return $buffer;
+    }
+}
--- a/web/vendor/symfony/debug/FatalErrorHandler/ClassNotFoundFatalErrorHandler.php
+++ b/web/vendor/symfony/debug/FatalErrorHandler/ClassNotFoundFatalErrorHandler.php
@ -0,0 +1,212 @@
+<?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\Debug\FatalErrorHandler;
+
+use Symfony\Component\Debug\Exception\ClassNotFoundException;
+use Symfony\Component\Debug\Exception\FatalErrorException;
+use Symfony\Component\Debug\DebugClassLoader;
+use Composer\Autoload\ClassLoader as ComposerClassLoader;
+use Symfony\Component\ClassLoader\ClassLoader as SymfonyClassLoader;
+use Symfony\Component\ClassLoader\UniversalClassLoader as SymfonyUniversalClassLoader;
+
+/**
+ * ErrorHandler for classes that do not exist.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class ClassNotFoundFatalErrorHandler implements FatalErrorHandlerInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function handleError(array $error, FatalErrorException $exception)
+    {
+        $messageLen = strlen($error['message']);
+        $notFoundSuffix = '\' not found';
+        $notFoundSuffixLen = strlen($notFoundSuffix);
+        if ($notFoundSuffixLen > $messageLen) {
+            return;
+        }
+
+        if (0 !== substr_compare($error['message'], $notFoundSuffix, -$notFoundSuffixLen)) {
+            return;
+        }
+
+        foreach (array('class', 'interface', 'trait') as $typeName) {
+            $prefix = ucfirst($typeName).' \'';
+            $prefixLen = strlen($prefix);
+            if (0 !== strpos($error['message'], $prefix)) {
+                continue;
+            }
+
+            $fullyQualifiedClassName = substr($error['message'], $prefixLen, -$notFoundSuffixLen);
+            if (false !== $namespaceSeparatorIndex = strrpos($fullyQualifiedClassName, '\\')) {
+                $className = substr($fullyQualifiedClassName, $namespaceSeparatorIndex + 1);
+                $namespacePrefix = substr($fullyQualifiedClassName, 0, $namespaceSeparatorIndex);
+                $message = sprintf('Attempted to load %s "%s" from namespace "%s".', $typeName, $className, $namespacePrefix);
+                $tail = ' for another namespace?';
+            } else {
+                $className = $fullyQualifiedClassName;
+                $message = sprintf('Attempted to load %s "%s" from the global namespace.', $typeName, $className);
+                $tail = '?';
+            }
+
+            if ($candidates = $this->getClassCandidates($className)) {
+                $tail = array_pop($candidates).'"?';
+                if ($candidates) {
+                    $tail = ' for e.g. "'.implode('", "', $candidates).'" or "'.$tail;
+                } else {
+                    $tail = ' for "'.$tail;
+                }
+            }
+            $message .= "\nDid you forget a \"use\" statement".$tail;
+
+            return new ClassNotFoundException($message, $exception);
+        }
+    }
+
+    /**
+     * Tries to guess the full namespace for a given class name.
+     *
+     * By default, it looks for PSR-0 and PSR-4 classes registered via a Symfony or a Composer
+     * autoloader (that should cover all common cases).
+     *
+     * @param string $class A class name (without its namespace)
+     *
+     * @return array An array of possible fully qualified class names
+     */
+    private function getClassCandidates($class)
+    {
+        if (!is_array($functions = spl_autoload_functions())) {
+            return array();
+        }
+
+        // find Symfony and Composer autoloaders
+        $classes = array();
+
+        foreach ($functions as $function) {
+            if (!is_array($function)) {
+                continue;
+            }
+            // get class loaders wrapped by DebugClassLoader
+            if ($function[0] instanceof DebugClassLoader) {
+                $function = $function[0]->getClassLoader();
+
+                // @deprecated since version 2.5. Returning an object from DebugClassLoader::getClassLoader() is deprecated.
+                if (is_object($function)) {
+                    $function = array($function);
+                }
+
+                if (!is_array($function)) {
+                    continue;
+                }
+            }
+
+            if ($function[0] instanceof ComposerClassLoader || $function[0] instanceof SymfonyClassLoader || $function[0] instanceof SymfonyUniversalClassLoader) {
+                foreach ($function[0]->getPrefixes() as $prefix => $paths) {
+                    foreach ($paths as $path) {
+                        $classes = array_merge($classes, $this->findClassInPath($path, $class, $prefix));
+                    }
+                }
+            }
+            if ($function[0] instanceof ComposerClassLoader) {
+                foreach ($function[0]->getPrefixesPsr4() as $prefix => $paths) {
+                    foreach ($paths as $path) {
+                        $classes = array_merge($classes, $this->findClassInPath($path, $class, $prefix));
+                    }
+                }
+            }
+        }
+
+        return array_unique($classes);
+    }
+
+    /**
+     * @param string $path
+     * @param string $class
+     * @param string $prefix
+     *
+     * @return array
+     */
+    private function findClassInPath($path, $class, $prefix)
+    {
+        if (!$path = realpath($path.'/'.strtr($prefix, '\\_', '//')) ?: realpath($path.'/'.dirname(strtr($prefix, '\\_', '//'))) ?: realpath($path)) {
+            return array();
+        }
+
+        $classes = array();
+        $filename = $class.'.php';
+        foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($path, \RecursiveDirectoryIterator::SKIP_DOTS), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
+            if ($filename == $file->getFileName() && $class = $this->convertFileToClass($path, $file->getPathName(), $prefix)) {
+                $classes[] = $class;
+            }
+        }
+
+        return $classes;
+    }
+
+    /**
+     * @param string $path
+     * @param string $file
+     * @param string $prefix
+     *
+     * @return string|null
+     */
+    private function convertFileToClass($path, $file, $prefix)
+    {
+        $candidates = array(
+            // namespaced class
+            $namespacedClass = str_replace(array($path.DIRECTORY_SEPARATOR, '.php', '/'), array('', '', '\\'), $file),
+            // namespaced class (with target dir)
+            $prefix.$namespacedClass,
+            // namespaced class (with target dir and separator)
+            $prefix.'\\'.$namespacedClass,
+            // PEAR class
+            str_replace('\\', '_', $namespacedClass),
+            // PEAR class (with target dir)
+            str_replace('\\', '_', $prefix.$namespacedClass),
+            // PEAR class (with target dir and separator)
+            str_replace('\\', '_', $prefix.'\\'.$namespacedClass),
+        );
+
+        if ($prefix) {
+            $candidates = array_filter($candidates, function ($candidate) use ($prefix) {return 0 === strpos($candidate, $prefix);});
+        }
+
+        // We cannot use the autoloader here as most of them use require; but if the class
+        // is not found, the new autoloader call will require the file again leading to a
+        // "cannot redeclare class" error.
+        foreach ($candidates as $candidate) {
+            if ($this->classExists($candidate)) {
+                return $candidate;
+            }
+        }
+
+        require_once $file;
+
+        foreach ($candidates as $candidate) {
+            if ($this->classExists($candidate)) {
+                return $candidate;
+            }
+        }
+    }
+
+    /**
+     * @param string $class
+     *
+     * @return bool
+     */
+    private function classExists($class)
+    {
+        return class_exists($class, false) || interface_exists($class, false) || (function_exists('trait_exists') && trait_exists($class, false));
+    }
+}
--- a/web/vendor/symfony/debug/FatalErrorHandler/FatalErrorHandlerInterface.php
+++ b/web/vendor/symfony/debug/FatalErrorHandler/FatalErrorHandlerInterface.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\Debug\FatalErrorHandler;
+
+use Symfony\Component\Debug\Exception\FatalErrorException;
+
+/**
+ * Attempts to convert fatal errors to exceptions.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface FatalErrorHandlerInterface
+{
+    /**
+     * Attempts to convert an error into an exception.
+     *
+     * @param array               $error     An array as returned by error_get_last()
+     * @param FatalErrorException $exception A FatalErrorException instance
+     *
+     * @return FatalErrorException|null A FatalErrorException instance if the class is able to convert the error, null otherwise
+     */
+    public function handleError(array $error, FatalErrorException $exception);
+}
--- a/web/vendor/symfony/debug/FatalErrorHandler/UndefinedFunctionFatalErrorHandler.php
+++ b/web/vendor/symfony/debug/FatalErrorHandler/UndefinedFunctionFatalErrorHandler.php
@ -0,0 +1,84 @@
+<?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\Debug\FatalErrorHandler;
+
+use Symfony\Component\Debug\Exception\UndefinedFunctionException;
+use Symfony\Component\Debug\Exception\FatalErrorException;
+
+/**
+ * ErrorHandler for undefined functions.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class UndefinedFunctionFatalErrorHandler implements FatalErrorHandlerInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function handleError(array $error, FatalErrorException $exception)
+    {
+        $messageLen = strlen($error['message']);
+        $notFoundSuffix = '()';
+        $notFoundSuffixLen = strlen($notFoundSuffix);
+        if ($notFoundSuffixLen > $messageLen) {
+            return;
+        }
+
+        if (0 !== substr_compare($error['message'], $notFoundSuffix, -$notFoundSuffixLen)) {
+            return;
+        }
+
+        $prefix = 'Call to undefined function ';
+        $prefixLen = strlen($prefix);
+        if (0 !== strpos($error['message'], $prefix)) {
+            return;
+        }
+
+        $fullyQualifiedFunctionName = substr($error['message'], $prefixLen, -$notFoundSuffixLen);
+        if (false !== $namespaceSeparatorIndex = strrpos($fullyQualifiedFunctionName, '\\')) {
+            $functionName = substr($fullyQualifiedFunctionName, $namespaceSeparatorIndex + 1);
+            $namespacePrefix = substr($fullyQualifiedFunctionName, 0, $namespaceSeparatorIndex);
+            $message = sprintf('Attempted to call function "%s" from namespace "%s".', $functionName, $namespacePrefix);
+        } else {
+            $functionName = $fullyQualifiedFunctionName;
+            $message = sprintf('Attempted to call function "%s" from the global namespace.', $functionName);
+        }
+
+        $candidates = array();
+        foreach (get_defined_functions() as $type => $definedFunctionNames) {
+            foreach ($definedFunctionNames as $definedFunctionName) {
+                if (false !== $namespaceSeparatorIndex = strrpos($definedFunctionName, '\\')) {
+                    $definedFunctionNameBasename = substr($definedFunctionName, $namespaceSeparatorIndex + 1);
+                } else {
+                    $definedFunctionNameBasename = $definedFunctionName;
+                }
+
+                if ($definedFunctionNameBasename === $functionName) {
+                    $candidates[] = '\\'.$definedFunctionName;
+                }
+            }
+        }
+
+        if ($candidates) {
+            sort($candidates);
+            $last = array_pop($candidates).'"?';
+            if ($candidates) {
+                $candidates = 'e.g. "'.implode('", "', $candidates).'" or "'.$last;
+            } else {
+                $candidates = '"'.$last;
+            }
+            $message .= "\nDid you mean to call ".$candidates;
+        }
+
+        return new UndefinedFunctionException($message, $exception);
+    }
+}
--- a/web/vendor/symfony/debug/FatalErrorHandler/UndefinedMethodFatalErrorHandler.php
+++ b/web/vendor/symfony/debug/FatalErrorHandler/UndefinedMethodFatalErrorHandler.php
@ -0,0 +1,66 @@
+<?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\Debug\FatalErrorHandler;
+
+use Symfony\Component\Debug\Exception\FatalErrorException;
+use Symfony\Component\Debug\Exception\UndefinedMethodException;
+
+/**
+ * ErrorHandler for undefined methods.
+ *
+ * @author Grégoire Pineau <lyrixx@lyrixx.info>
+ */
+class UndefinedMethodFatalErrorHandler implements FatalErrorHandlerInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function handleError(array $error, FatalErrorException $exception)
+    {
+        preg_match('/^Call to undefined method (.*)::(.*)\(\)$/', $error['message'], $matches);
+        if (!$matches) {
+            return;
+        }
+
+        $className = $matches[1];
+        $methodName = $matches[2];
+
+        $message = sprintf('Attempted to call an undefined method named "%s" of class "%s".', $methodName, $className);
+
+        if (!class_exists($className) || null === $methods = get_class_methods($className)) {
+            // failed to get the class or its methods on which an unknown method was called (for example on an anonymous class)
+            return new UndefinedMethodException($message, $exception);
+        }
+
+        $candidates = array();
+        foreach ($methods as $definedMethodName) {
+            $lev = levenshtein($methodName, $definedMethodName);
+            if ($lev <= strlen($methodName) / 3 || false !== strpos($definedMethodName, $methodName)) {
+                $candidates[] = $definedMethodName;
+            }
+        }
+
+        if ($candidates) {
+            sort($candidates);
+            $last = array_pop($candidates).'"?';
+            if ($candidates) {
+                $candidates = 'e.g. "'.implode('", "', $candidates).'" or "'.$last;
+            } else {
+                $candidates = '"'.$last;
+            }
+
+            $message .= "\nDid you mean to call ".$candidates;
+        }
+
+        return new UndefinedMethodException($message, $exception);
+    }
+}
--- a/web/vendor/symfony/debug/LICENSE
+++ b/web/vendor/symfony/debug/LICENSE
@ -0,0 +1,19 @@
+Copyright (c) 2004-2017 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.
--- a/web/vendor/symfony/debug/README.md
+++ b/web/vendor/symfony/debug/README.md
@ -0,0 +1,13 @@
+Debug Component
+===============
+
+The Debug component provides tools to ease debugging PHP code.
+
+Resources
+---------
+
+  * [Documentation](https://symfony.com/doc/current/components/debug/index.html)
+  * [Contributing](https://symfony.com/doc/current/contributing/index.html)
+  * [Report issues](https://github.com/symfony/symfony/issues) and
+    [send Pull Requests](https://github.com/symfony/symfony/pulls)
+    in the [main Symfony repository](https://github.com/symfony/symfony)
--- a/web/vendor/symfony/debug/Resources/ext/README.md
+++ b/web/vendor/symfony/debug/Resources/ext/README.md
@ -0,0 +1,134 @@
+Symfony Debug Extension for PHP 5
+=================================
+
+This extension publishes several functions to help building powerful debugging tools.
+It is compatible with PHP 5.3, 5.4, 5.5 and 5.6; with ZTS and non-ZTS modes.
+It is not required thus not provided for PHP 7.
+
+symfony_zval_info()
+-------------------
+
+- exposes zval_hash/refcounts, allowing e.g. efficient exploration of arbitrary structures in PHP,
+- does work with references, preventing memory copying.
+
+Its behavior is about the same as:
+
+```php
+<?php
+
+function symfony_zval_info($key, $array, $options = 0)
+{
+
+    // $options is currently not used, but could be in future version.
+
+    if (!array_key_exists($key, $array)) {
+        return null;
+    }
+
+    $info = array(
+        'type' => gettype($array[$key]),
+        'zval_hash' => /* hashed memory address of $array[$key] */,
+        'zval_refcount' => /* internal zval refcount of $array[$key] */,
+        'zval_isref' => /* is_ref status of $array[$key] */,
+    );
+
+    switch ($info['type']) {
+        case 'object':
+            $info += array(
+                'object_class' => get_class($array[$key]),
+                'object_refcount' => /* internal object refcount of $array[$key] */,
+                'object_hash' => spl_object_hash($array[$key]),
+                'object_handle' => /* internal object handle $array[$key] */,
+            );
+            break;
+
+        case 'resource':
+            $info += array(
+                'resource_handle' => (int) $array[$key],
+                'resource_type' => get_resource_type($array[$key]),
+                'resource_refcount' => /* internal resource refcount of $array[$key] */,
+            );
+            break;
+
+        case 'array':
+            $info += array(
+                'array_count' => count($array[$key]),
+            );
+            break;
+
+        case 'string':
+            $info += array(
+                'strlen' => strlen($array[$key]),
+            );
+            break;
+    }
+
+    return $info;
+}
+```
+
+symfony_debug_backtrace()
+-------------------------
+
+This function works like debug_backtrace(), except that it can fetch the full backtrace in case of fatal errors:
+
+```php
+function foo() { fatal(); }
+function bar() { foo(); }
+
+function sd() { var_dump(symfony_debug_backtrace()); }
+
+register_shutdown_function('sd');
+
+bar();
+
+/* Will output
+Fatal error: Call to undefined function fatal() in foo.php on line 42
+array(3) {
+  [0]=>
+  array(2) {
+    ["function"]=>
+    string(2) "sd"
+    ["args"]=>
+    array(0) {
+    }
+  }
+  [1]=>
+  array(4) {
+    ["file"]=>
+    string(7) "foo.php"
+    ["line"]=>
+    int(1)
+    ["function"]=>
+    string(3) "foo"
+    ["args"]=>
+    array(0) {
+    }
+  }
+  [2]=>
+  array(4) {
+    ["file"]=>
+    string(102) "foo.php"
+    ["line"]=>
+    int(2)
+    ["function"]=>
+    string(3) "bar"
+    ["args"]=>
+    array(0) {
+    }
+  }
+}
+*/
+```
+
+Usage
+-----
+
+To enable the extension from source, run:
+
+```
+    phpize
+    ./configure
+    make
+    sudo make install
+```
--- a/web/vendor/symfony/debug/Resources/ext/config.m4
+++ b/web/vendor/symfony/debug/Resources/ext/config.m4
@ -0,0 +1,63 @@
+dnl $Id$
+dnl config.m4 for extension symfony_debug
+
+dnl Comments in this file start with the string 'dnl'.
+dnl Remove where necessary. This file will not work
+dnl without editing.
+
+dnl If your extension references something external, use with:
+
+dnl PHP_ARG_WITH(symfony_debug, for symfony_debug support,
+dnl Make sure that the comment is aligned:
+dnl [  --with-symfony_debug             Include symfony_debug support])
+
+dnl Otherwise use enable:
+
+PHP_ARG_ENABLE(symfony_debug, whether to enable symfony_debug support,
+dnl Make sure that the comment is aligned:
+[  --enable-symfony_debug           Enable symfony_debug support])
+
+if test "$PHP_SYMFONY_DEBUG" != "no"; then
+  dnl Write more examples of tests here...
+
+  dnl # --with-symfony_debug -> check with-path
+  dnl SEARCH_PATH="/usr/local /usr"     # you might want to change this
+  dnl SEARCH_FOR="/include/symfony_debug.h"  # you most likely want to change this
+  dnl if test -r $PHP_SYMFONY_DEBUG/$SEARCH_FOR; then # path given as parameter
+  dnl   SYMFONY_DEBUG_DIR=$PHP_SYMFONY_DEBUG
+  dnl else # search default path list
+  dnl   AC_MSG_CHECKING([for symfony_debug files in default path])
+  dnl   for i in $SEARCH_PATH ; do
+  dnl     if test -r $i/$SEARCH_FOR; then
+  dnl       SYMFONY_DEBUG_DIR=$i
+  dnl       AC_MSG_RESULT(found in $i)
+  dnl     fi
+  dnl   done
+  dnl fi
+  dnl
+  dnl if test -z "$SYMFONY_DEBUG_DIR"; then
+  dnl   AC_MSG_RESULT([not found])
+  dnl   AC_MSG_ERROR([Please reinstall the symfony_debug distribution])
+  dnl fi
+
+  dnl # --with-symfony_debug -> add include path
+  dnl PHP_ADD_INCLUDE($SYMFONY_DEBUG_DIR/include)
+
+  dnl # --with-symfony_debug -> check for lib and symbol presence
+  dnl LIBNAME=symfony_debug # you may want to change this
+  dnl LIBSYMBOL=symfony_debug # you most likely want to change this 
+
+  dnl PHP_CHECK_LIBRARY($LIBNAME,$LIBSYMBOL,
+  dnl [
+  dnl   PHP_ADD_LIBRARY_WITH_PATH($LIBNAME, $SYMFONY_DEBUG_DIR/lib, SYMFONY_DEBUG_SHARED_LIBADD)
+  dnl   AC_DEFINE(HAVE_SYMFONY_DEBUGLIB,1,[ ])
+  dnl ],[
+  dnl   AC_MSG_ERROR([wrong symfony_debug lib version or lib not found])
+  dnl ],[
+  dnl   -L$SYMFONY_DEBUG_DIR/lib -lm
+  dnl ])
+  dnl
+  dnl PHP_SUBST(SYMFONY_DEBUG_SHARED_LIBADD)
+
+  PHP_NEW_EXTENSION(symfony_debug, symfony_debug.c, $ext_shared)
+fi
--- a/web/vendor/symfony/debug/Resources/ext/config.w32
+++ b/web/vendor/symfony/debug/Resources/ext/config.w32
@ -0,0 +1,13 @@
+// $Id$
+// vim:ft=javascript
+
+// If your extension references something external, use ARG_WITH
+// ARG_WITH("symfony_debug", "for symfony_debug support", "no");
+
+// Otherwise, use ARG_ENABLE
+// ARG_ENABLE("symfony_debug", "enable symfony_debug support", "no");
+
+if (PHP_SYMFONY_DEBUG != "no") {
+	EXTENSION("symfony_debug", "symfony_debug.c");
+}
+
--- a/web/vendor/symfony/debug/Resources/ext/php_symfony_debug.h
+++ b/web/vendor/symfony/debug/Resources/ext/php_symfony_debug.h
@ -0,0 +1,60 @@
+/*
+ * 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.
+ */
+
+#ifndef PHP_SYMFONY_DEBUG_H
+#define PHP_SYMFONY_DEBUG_H
+
+extern zend_module_entry symfony_debug_module_entry;
+#define phpext_symfony_debug_ptr &symfony_debug_module_entry
+
+#define PHP_SYMFONY_DEBUG_VERSION "2.7"
+
+#ifdef PHP_WIN32
+#	define PHP_SYMFONY_DEBUG_API __declspec(dllexport)
+#elif defined(__GNUC__) && __GNUC__ >= 4
+#	define PHP_SYMFONY_DEBUG_API __attribute__ ((visibility("default")))
+#else
+#	define PHP_SYMFONY_DEBUG_API
+#endif
+
+#ifdef ZTS
+#include "TSRM.h"
+#endif
+
+ZEND_BEGIN_MODULE_GLOBALS(symfony_debug)
+	intptr_t req_rand_init;
+	void (*old_error_cb)(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args);
+	zval *debug_bt;
+ZEND_END_MODULE_GLOBALS(symfony_debug)
+
+PHP_MINIT_FUNCTION(symfony_debug);
+PHP_MSHUTDOWN_FUNCTION(symfony_debug);
+PHP_RINIT_FUNCTION(symfony_debug);
+PHP_RSHUTDOWN_FUNCTION(symfony_debug);
+PHP_MINFO_FUNCTION(symfony_debug);
+PHP_GINIT_FUNCTION(symfony_debug);
+PHP_GSHUTDOWN_FUNCTION(symfony_debug);
+
+PHP_FUNCTION(symfony_zval_info);
+PHP_FUNCTION(symfony_debug_backtrace);
+
+static char *_symfony_debug_memory_address_hash(void * TSRMLS_DC);
+static const char *_symfony_debug_zval_type(zval *);
+static const char* _symfony_debug_get_resource_type(long TSRMLS_DC);
+static int _symfony_debug_get_resource_refcount(long TSRMLS_DC);
+
+void symfony_debug_error_cb(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args);
+
+#ifdef ZTS
+#define SYMFONY_DEBUG_G(v) TSRMG(symfony_debug_globals_id, zend_symfony_debug_globals *, v)
+#else
+#define SYMFONY_DEBUG_G(v) (symfony_debug_globals.v)
+#endif
+
+#endif	/* PHP_SYMFONY_DEBUG_H */
--- a/web/vendor/symfony/debug/Resources/ext/symfony_debug.c
+++ b/web/vendor/symfony/debug/Resources/ext/symfony_debug.c
@ -0,0 +1,283 @@
+/*
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "php.h"
+#ifdef ZTS
+#include "TSRM.h"
+#endif
+#include "php_ini.h"
+#include "ext/standard/info.h"
+#include "php_symfony_debug.h"
+#include "ext/standard/php_rand.h"
+#include "ext/standard/php_lcg.h"
+#include "ext/spl/php_spl.h"
+#include "Zend/zend_gc.h"
+#include "Zend/zend_builtin_functions.h"
+#include "Zend/zend_extensions.h" /* for ZEND_EXTENSION_API_NO */
+#include "ext/standard/php_array.h"
+#include "Zend/zend_interfaces.h"
+#include "SAPI.h"
+
+#define IS_PHP_53 ZEND_EXTENSION_API_NO == 220090626
+
+ZEND_DECLARE_MODULE_GLOBALS(symfony_debug)
+
+ZEND_BEGIN_ARG_INFO_EX(symfony_zval_arginfo, 0, 0, 2)
+	ZEND_ARG_INFO(0, key)
+	ZEND_ARG_ARRAY_INFO(0, array, 0)
+	ZEND_ARG_INFO(0, options)
+ZEND_END_ARG_INFO()
+
+const zend_function_entry symfony_debug_functions[] = {
+	PHP_FE(symfony_zval_info,	symfony_zval_arginfo)
+	PHP_FE(symfony_debug_backtrace, NULL)
+	PHP_FE_END
+};
+
+PHP_FUNCTION(symfony_debug_backtrace)
+{
+	if (zend_parse_parameters_none() == FAILURE) {
+		return;
+	}
+#if IS_PHP_53
+	zend_fetch_debug_backtrace(return_value, 1, 0 TSRMLS_CC);
+#else
+	zend_fetch_debug_backtrace(return_value, 1, 0, 0 TSRMLS_CC);
+#endif
+
+	if (!SYMFONY_DEBUG_G(debug_bt)) {
+		return;
+	}
+
+	php_array_merge(Z_ARRVAL_P(return_value), Z_ARRVAL_P(SYMFONY_DEBUG_G(debug_bt)), 0 TSRMLS_CC);
+}
+
+PHP_FUNCTION(symfony_zval_info)
+{
+	zval *key = NULL, *arg = NULL;
+	zval **data = NULL;
+	HashTable *array = NULL;
+	long options = 0;
+
+	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zh|l", &key, &array, &options) == FAILURE) {
+		return;
+	}
+
+	switch (Z_TYPE_P(key)) {
+		case IS_STRING:
+			if (zend_symtable_find(array, Z_STRVAL_P(key), Z_STRLEN_P(key) + 1, (void **)&data) == FAILURE) {
+				return;
+			}
+		break;
+		case IS_LONG:
+			if (zend_hash_index_find(array, Z_LVAL_P(key), (void **)&data)) {
+				return;
+			}
+		break;
+	}
+
+	arg = *data;
+
+	array_init(return_value);
+
+	add_assoc_string(return_value, "type", (char *)_symfony_debug_zval_type(arg), 1);
+	add_assoc_stringl(return_value, "zval_hash", _symfony_debug_memory_address_hash((void *)arg TSRMLS_CC), 16, 0);
+	add_assoc_long(return_value, "zval_refcount", Z_REFCOUNT_P(arg));
+	add_assoc_bool(return_value, "zval_isref", (zend_bool)Z_ISREF_P(arg));
+
+	if (Z_TYPE_P(arg) == IS_OBJECT) {
+		char hash[33] = {0};
+
+		php_spl_object_hash(arg, (char *)hash TSRMLS_CC);
+		add_assoc_stringl(return_value, "object_class", (char *)Z_OBJCE_P(arg)->name, Z_OBJCE_P(arg)->name_length, 1);
+		add_assoc_long(return_value, "object_refcount", EG(objects_store).object_buckets[Z_OBJ_HANDLE_P(arg)].bucket.obj.refcount);
+		add_assoc_string(return_value, "object_hash", hash, 1);
+		add_assoc_long(return_value, "object_handle", Z_OBJ_HANDLE_P(arg));
+	} else if (Z_TYPE_P(arg) == IS_ARRAY) {
+		add_assoc_long(return_value, "array_count", zend_hash_num_elements(Z_ARRVAL_P(arg)));
+	} else if(Z_TYPE_P(arg) == IS_RESOURCE) {
+		add_assoc_long(return_value, "resource_handle", Z_LVAL_P(arg));
+		add_assoc_string(return_value, "resource_type", (char *)_symfony_debug_get_resource_type(Z_LVAL_P(arg) TSRMLS_CC), 1);
+		add_assoc_long(return_value, "resource_refcount", _symfony_debug_get_resource_refcount(Z_LVAL_P(arg) TSRMLS_CC));
+	} else if (Z_TYPE_P(arg) == IS_STRING) {
+		add_assoc_long(return_value, "strlen", Z_STRLEN_P(arg));
+	}
+}
+
+void symfony_debug_error_cb(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args)
+{
+	TSRMLS_FETCH();
+	zval *retval;
+
+	switch (type) {
+		case E_ERROR:
+		case E_PARSE:
+		case E_CORE_ERROR:
+		case E_CORE_WARNING:
+		case E_COMPILE_ERROR:
+		case E_COMPILE_WARNING:
+			ALLOC_INIT_ZVAL(retval);
+#if IS_PHP_53
+			zend_fetch_debug_backtrace(retval, 1, 0 TSRMLS_CC);
+#else
+			zend_fetch_debug_backtrace(retval, 1, 0, 0 TSRMLS_CC);
+#endif
+			SYMFONY_DEBUG_G(debug_bt) = retval;
+	}
+
+	SYMFONY_DEBUG_G(old_error_cb)(type, error_filename, error_lineno, format, args);
+}
+
+static const char* _symfony_debug_get_resource_type(long rsid TSRMLS_DC)
+{
+	const char *res_type;
+	res_type = zend_rsrc_list_get_rsrc_type(rsid TSRMLS_CC);
+
+	if (!res_type) {
+		return "Unknown";
+	}
+
+	return res_type;
+}
+
+static int _symfony_debug_get_resource_refcount(long rsid TSRMLS_DC)
+{
+	zend_rsrc_list_entry *le;
+
+	if (zend_hash_index_find(&EG(regular_list), rsid, (void **) &le)==SUCCESS) {
+		return le->refcount;
+	}
+
+	return 0;
+}
+
+static char *_symfony_debug_memory_address_hash(void *address TSRMLS_DC)
+{
+	char *result = NULL;
+	intptr_t address_rand;
+
+	if (!SYMFONY_DEBUG_G(req_rand_init)) {
+		if (!BG(mt_rand_is_seeded)) {
+			php_mt_srand(GENERATE_SEED() TSRMLS_CC);
+		}
+		SYMFONY_DEBUG_G(req_rand_init) = (intptr_t)php_mt_rand(TSRMLS_C);
+	}
+
+	address_rand = (intptr_t)address ^ SYMFONY_DEBUG_G(req_rand_init);
+
+	spprintf(&result, 17, "%016zx", address_rand);
+
+	return result;
+}
+
+static const char *_symfony_debug_zval_type(zval *zv)
+{
+	switch (Z_TYPE_P(zv)) {
+		case IS_NULL:
+			return "NULL";
+			break;
+
+		case IS_BOOL:
+			return "boolean";
+			break;
+
+		case IS_LONG:
+			return "integer";
+			break;
+
+		case IS_DOUBLE:
+			return "double";
+			break;
+
+		case IS_STRING:
+			return "string";
+			break;
+
+		case IS_ARRAY:
+			return "array";
+			break;
+
+		case IS_OBJECT:
+			return "object";
+
+		case IS_RESOURCE:
+			return "resource";
+
+		default:
+			return "unknown type";
+	}
+}
+
+zend_module_entry symfony_debug_module_entry = {
+	STANDARD_MODULE_HEADER,
+	"symfony_debug",
+	symfony_debug_functions,
+	PHP_MINIT(symfony_debug),
+	PHP_MSHUTDOWN(symfony_debug),
+	PHP_RINIT(symfony_debug),
+	PHP_RSHUTDOWN(symfony_debug),
+	PHP_MINFO(symfony_debug),
+	PHP_SYMFONY_DEBUG_VERSION,
+	PHP_MODULE_GLOBALS(symfony_debug),
+	PHP_GINIT(symfony_debug),
+	PHP_GSHUTDOWN(symfony_debug),
+	NULL,
+	STANDARD_MODULE_PROPERTIES_EX
+};
+
+#ifdef COMPILE_DL_SYMFONY_DEBUG
+ZEND_GET_MODULE(symfony_debug)
+#endif
+
+PHP_GINIT_FUNCTION(symfony_debug)
+{
+	memset(symfony_debug_globals, 0 , sizeof(*symfony_debug_globals));
+}
+
+PHP_GSHUTDOWN_FUNCTION(symfony_debug)
+{
+
+}
+
+PHP_MINIT_FUNCTION(symfony_debug)
+{
+	SYMFONY_DEBUG_G(old_error_cb) = zend_error_cb;
+	zend_error_cb                 = symfony_debug_error_cb;
+
+	return SUCCESS;
+}
+
+PHP_MSHUTDOWN_FUNCTION(symfony_debug)
+{
+	zend_error_cb = SYMFONY_DEBUG_G(old_error_cb);
+
+	return SUCCESS;
+}
+
+PHP_RINIT_FUNCTION(symfony_debug)
+{
+	return SUCCESS;
+}
+
+PHP_RSHUTDOWN_FUNCTION(symfony_debug)
+{
+	return SUCCESS;
+}
+
+PHP_MINFO_FUNCTION(symfony_debug)
+{
+	php_info_print_table_start();
+	php_info_print_table_header(2, "Symfony Debug support", "enabled");
+	php_info_print_table_header(2, "Symfony Debug version", PHP_SYMFONY_DEBUG_VERSION);
+	php_info_print_table_end();
+}
--- a/web/vendor/symfony/debug/Resources/ext/tests/001.phpt
+++ b/web/vendor/symfony/debug/Resources/ext/tests/001.phpt
@ -0,0 +1,153 @@
+--TEST--
+Test symfony_zval_info API
+--SKIPIF--
+<?php if (!extension_loaded('symfony_debug')) print 'skip'; ?>
+--FILE--
+<?php
+
+$int = 42;
+$float = 42.42;
+$str = 'foobar';
+$object = new StdClass();
+$array = array('foo', 'bar');
+$resource = tmpfile();
+$null = null;
+$bool = true;
+
+$anotherint = 42;
+$refcount2 = &$anotherint;
+
+$var = array(
+    'int' => $int,
+    'float' => $float,
+    'str' => $str,
+    'object' => $object,
+    'array' => $array,
+    'resource' => $resource,
+    'null' => $null,
+    'bool' => $bool,
+    'refcount' => &$refcount2,
+);
+
+var_dump(symfony_zval_info('int', $var));
+var_dump(symfony_zval_info('float', $var));
+var_dump(symfony_zval_info('str', $var));
+var_dump(symfony_zval_info('object', $var));
+var_dump(symfony_zval_info('array', $var));
+var_dump(symfony_zval_info('resource', $var));
+var_dump(symfony_zval_info('null', $var));
+var_dump(symfony_zval_info('bool', $var));
+
+var_dump(symfony_zval_info('refcount', $var));
+var_dump(symfony_zval_info('not-exist', $var));
+?>
+--EXPECTF--
+array(4) {
+  ["type"]=>
+  string(7) "integer"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+}
+array(4) {
+  ["type"]=>
+  string(6) "double"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+}
+array(5) {
+  ["type"]=>
+  string(6) "string"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+  ["strlen"]=>
+  int(6)
+}
+array(8) {
+  ["type"]=>
+  string(6) "object"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+  ["object_class"]=>
+  string(8) "stdClass"
+  ["object_refcount"]=>
+  int(1)
+  ["object_hash"]=>
+  string(32) "%s"
+  ["object_handle"]=>
+  int(%d)
+}
+array(5) {
+  ["type"]=>
+  string(5) "array"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+  ["array_count"]=>
+  int(2)
+}
+array(7) {
+  ["type"]=>
+  string(8) "resource"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+  ["resource_handle"]=>
+  int(%d)
+  ["resource_type"]=>
+  string(6) "stream"
+  ["resource_refcount"]=>
+  int(1)
+}
+array(4) {
+  ["type"]=>
+  string(4) "NULL"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+}
+array(4) {
+  ["type"]=>
+  string(7) "boolean"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(2)
+  ["zval_isref"]=>
+  bool(false)
+}
+array(4) {
+  ["type"]=>
+  string(7) "integer"
+  ["zval_hash"]=>
+  string(16) "%s"
+  ["zval_refcount"]=>
+  int(3)
+  ["zval_isref"]=>
+  bool(true)
+}
+NULL
--- a/web/vendor/symfony/debug/Resources/ext/tests/002.phpt
+++ b/web/vendor/symfony/debug/Resources/ext/tests/002.phpt
@ -0,0 +1,63 @@
+--TEST--
+Test symfony_debug_backtrace in case of fatal error
+--SKIPIF--
+<?php if (!extension_loaded('symfony_debug')) print 'skip'; ?>
+--FILE--
+<?php
+
+function bar()
+{
+    foo();
+}
+
+function foo()
+{
+    notexist();
+}
+
+function bt()
+{
+    print_r(symfony_debug_backtrace());
+}
+
+register_shutdown_function('bt');
+
+bar();
+
+?>
+--EXPECTF--
+Fatal error: Call to undefined function notexist() in %s on line %d
+Array
+(
+    [0] => Array
+        (
+            [function] => bt
+            [args] => Array
+                (
+                )
+
+        )
+
+    [1] => Array
+        (
+            [file] => %s
+            [line] => %d
+            [function] => foo
+            [args] => Array
+                (
+                )
+
+        )
+
+    [2] => Array
+        (
+            [file] => %s
+            [line] => %d
+            [function] => bar
+            [args] => Array
+                (
+                )
+
+        )
+
+)
--- a/web/vendor/symfony/debug/Resources/ext/tests/002_1.phpt
+++ b/web/vendor/symfony/debug/Resources/ext/tests/002_1.phpt
@ -0,0 +1,46 @@
+--TEST--
+Test symfony_debug_backtrace in case of non fatal error
+--SKIPIF--
+<?php if (!extension_loaded('symfony_debug')) print 'skip'; ?>
+--FILE--
+<?php
+
+function bar()
+{
+    bt();
+}
+
+function bt()
+{
+    print_r(symfony_debug_backtrace());
+}
+
+bar();
+
+?>
+--EXPECTF--
+Array
+(
+    [0] => Array
+        (
+            [file] => %s
+            [line] => %d
+            [function] => bt
+            [args] => Array
+                (
+                )
+
+        )
+
+    [1] => Array
+        (
+            [file] => %s
+            [line] => %d
+            [function] => bar
+            [args] => Array
+                (
+                )
+
+        )
+
+)
--- a/web/vendor/symfony/debug/Resources/ext/tests/003.phpt
+++ b/web/vendor/symfony/debug/Resources/ext/tests/003.phpt
@ -0,0 +1,85 @@
+--TEST--
+Test ErrorHandler in case of fatal error
+--SKIPIF--
+<?php if (!extension_loaded('symfony_debug')) print 'skip'; ?>
+--FILE--
+<?php
+
+namespace Psr\Log;
+
+class LogLevel
+{
+    const EMERGENCY = 'emergency';
+    const ALERT = 'alert';
+    const CRITICAL = 'critical';
+    const ERROR = 'error';
+    const WARNING = 'warning';
+    const NOTICE = 'notice';
+    const INFO = 'info';
+    const DEBUG = 'debug';
+}
+
+namespace Symfony\Component\Debug;
+
+$dir = __DIR__.'/../../../';
+require $dir.'ErrorHandler.php';
+require $dir.'Exception/FatalErrorException.php';
+require $dir.'Exception/UndefinedFunctionException.php';
+require $dir.'FatalErrorHandler/FatalErrorHandlerInterface.php';
+require $dir.'FatalErrorHandler/ClassNotFoundFatalErrorHandler.php';
+require $dir.'FatalErrorHandler/UndefinedFunctionFatalErrorHandler.php';
+require $dir.'FatalErrorHandler/UndefinedMethodFatalErrorHandler.php';
+
+function bar()
+{
+    foo();
+}
+
+function foo()
+{
+    notexist();
+}
+
+$handler = ErrorHandler::register();
+$handler->setExceptionHandler('print_r');
+
+if (function_exists('xdebug_disable')) {
+    xdebug_disable();
+}
+
+bar();
+?>
+--EXPECTF--
+Fatal error: Call to undefined function Symfony\Component\Debug\notexist() in %s on line %d
+Symfony\Component\Debug\Exception\UndefinedFunctionException Object
+(
+    [message:protected] => Attempted to call function "notexist" from namespace "Symfony\Component\Debug".
+    [string:Exception:private] => 
+    [code:protected] => 0
+    [file:protected] => %s
+    [line:protected] => %d
+    [trace:Exception:private] => Array
+        (
+            [0] => Array
+                (
+%A                    [function] => Symfony\Component\Debug\foo
+%A                    [args] => Array
+                        (
+                        )
+
+                )
+
+            [1] => Array
+                (
+%A                    [function] => Symfony\Component\Debug\bar
+%A                    [args] => Array
+                        (
+                        )
+
+                )
+%A
+        )
+
+    [previous:Exception:private] => 
+    [severity:protected] => 1
+)
--- a/web/vendor/symfony/debug/composer.json
+++ b/web/vendor/symfony/debug/composer.json
@ -0,0 +1,41 @@
+{
+    "name": "symfony/debug",
+    "type": "library",
+    "description": "Symfony Debug Component",
+    "keywords": [],
+    "homepage": "https://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Fabien Potencier",
+            "email": "fabien@symfony.com"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "https://symfony.com/contributors"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.9",
+        "psr/log": "~1.0"
+    },
+    "conflict": {
+        "symfony/http-kernel": ">=2.3,<2.3.24|~2.4.0|>=2.5,<2.5.9|>=2.6,<2.6.2"
+    },
+    "require-dev": {
+        "symfony/class-loader": "~2.2|~3.0.0",
+        "symfony/http-kernel": "~2.3.24|~2.5.9|~2.6,>=2.6.2|~3.0.0"
+    },
+    "autoload": {
+        "psr-4": { "Symfony\\Component\\Debug\\": "" },
+        "exclude-from-classmap": [
+            "/Tests/"
+        ]
+    },
+    "minimum-stability": "dev",
+    "extra": {
+        "branch-alias": {
+            "dev-master": "2.8-dev"
+        }
+    }
+}
--- a/web/vendor/symfony/debug/phpunit.xml.dist
+++ b/web/vendor/symfony/debug/phpunit.xml.dist
@ -0,0 +1,31 @@
+<?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 Debug Component Test Suite">
+            <directory>./Tests/</directory>
+        </testsuite>
+        <testsuite name="Symfony Debug Extension Test Suite">
+            <directory suffix=".phpt">./Resources/ext/tests/</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist>
+            <directory>./</directory>
+            <exclude>
+                <directory>./Tests</directory>
+                <directory>./vendor</directory>
+            </exclude>
+        </whitelist>
+    </filter>
+</phpunit>