Merge branch '2.4'

* 2.4:
  fixed various inconsistencies
  reduced recursion when building DumperPrefixCollection
  renamed variables - making next change more readable
  removing dead code.
  [ExpressionLanguage] added some tests for the built-in constant() function
  [ExpressionLanguage] added some documentation about functions
  [DomCrawler] Fixed filterXPath() chaining
  [DomCrawler] Fixed incorrect handling of image inputs

Author: fabpot

Tests/Functional/WebTestCase.php

@@ -37,7 +37,7 @@ protected static function getKernelClass()
     {
         require_once __DIR__.'/app/AppKernel.php';
 
-        return 'Symfony\Bundle\SecurityBundle\Tests\Functional\AppKernel';
+        return 'Symfony\Bundle\SecurityBundle\Tests\Functional\app\AppKernel';
     }
 
     protected static function createKernel(array $options = array())

Tests/Functional/app/AppKernel.php

@@ -9,7 +9,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Symfony\Bundle\SecurityBundle\Tests\Functional;
+namespace Symfony\Bundle\SecurityBundle\Tests\Functional\app;
 
 // get the autoload file
 $dir = __DIR__;