Merge branch '3.4' into 4.0

* 3.4:
  fix class existence
  fix tests
  fixed constraints
  fixed constraints
  bumped dep
  bumped dep

src/Symfony/Bundle/SecurityBundle/Tests/DependencyInjection/Compiler/AddSecurityVotersPassTest.php

@@ -88,3 +88,10 @@ class AddSecurityVotersPassTest extends TestCase
         $compilerPass->process($container);
     }
 }
+
+class VoterWithoutInterface
+{
+    public function vote()
+    {
+    }
+}