Merge branch '2.5'

* 2.5:
  [Validator] Add missing ru translations
  don't disable constructor calls to mockups of classes that extend internal PHP classes
  special handling for the JsonDescriptor to work around changes in PHP's JSON pretty printer

Author: fabpot

Core/Tests/Authentication/AuthenticationProviderManagerTest.php

@@ -129,7 +129,7 @@ protected function getAuthenticationProvider($supports, $token = null, $exceptio
         } elseif (null !== $exception) {
             $provider->expects($this->once())
                      ->method('authenticate')
-                     ->will($this->throwException($this->getMock($exception, null, array(), '', true)))
+                     ->will($this->throwException($this->getMock($exception, null, array(), '')))
             ;
         }