Merge branch '2.3' into 2.4

* 2.3: (35 commits)
  [Form] Fix PHPDoc for builder setData methods The underlying data variable is typed as mixed whereas the methods paramers where typed as array.
  fixed CS
  [Intl] Improved bundle reader implementations
  [Console] guarded against invalid aliases
  switch before_script to before_install and script to install
  fixed typo
  [HttpFoundation] Request - URI - comment improvements
  [Security] Added more tests
  remove `service` parameter type from XSD
  [Intl] Added exception handler to command line scripts
  [Intl] Fixed a few bugs in TextBundleWriter
  [Intl] Updated icu.ini up to ICU 53
  [Intl] Removed non-working $fallback argument from ArrayAccessibleResourceBundle
  Use separated function to resolve command and related arguments
  [SwiftmailerBridge] Bump allowed versions of swiftmailer
  [FrameworkBundle] Remove invalid markup
  [Intl] Added "internal" tag to all classes under Symfony\Component\Intl\ResourceBundle
  Remove routes for removed WebProfiler actions
  [Security] Fix usage of unexistent method in DoctrineAclCache.
  backport more error information from 2.6 to 2.3
  ...

Conflicts:
	.travis.yml
	src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php
	src/Symfony/Component/DependencyInjection/Tests/Loader/XmlFileLoaderTest.php
	src/Symfony/Component/HttpKernel/Kernel.php
	src/Symfony/Component/Process/PhpExecutableFinder.php

Author: fabpot

Command/Command.php

@@ -491,11 +491,11 @@ public function getProcessedHelp()
 
         $placeholders = array(
             '%command.name%',
-            '%command.full_name%'
+            '%command.full_name%',
         );
         $replacements = array(
             $name,
-            $_SERVER['PHP_SELF'].' '.$name
+            $_SERVER['PHP_SELF'].' '.$name,
         );
 
         return str_replace($placeholders, $replacements, $this->getHelp());
@@ -504,7 +504,7 @@ public function getProcessedHelp()
     /**
      * Sets the aliases for the command.
      *
-     * @param array $aliases An array of aliases for the command
+     * @param string[] $aliases An array of aliases for the command
      *
      * @return Command The current instance
      *
@@ -514,6 +514,10 @@ public function getProcessedHelp()
      */
     public function setAliases($aliases)
     {
+        if (!is_array($aliases) && !$aliases instanceof \Traversable) {
+            throw new \InvalidArgumentException('$aliases must be an array or an instance of \Traversable');
+        }
+
         foreach ($aliases as $alias) {
             $this->validateName($alias);
         }