minor #2035 Fixed comments and namespaces (yceruto)

This PR was submitted for the master branch but it was merged into the 1.3.x branch instead (closes #2035).

Discussion
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Fixed comments and namespaces

Fixed #2034

Commits
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3f9e90c Fixed #2034

Author: stof

Resources/doc/overriding_controllers.rst

@@ -12,9 +12,9 @@ bundle named ``AcmeUserBundle`` that declares itself a child of FOSUserBundle.
 
 .. code-block:: php
 
-    // src/AppBundle/AcmeUserBundle.php
+    // src/Acme/UserBundle/AcmeUserBundle.php
 
-    namespace AppBundle;
+    namespace Acme\UserBundle;
 
     use Symfony\Component\HttpKernel\Bundle\Bundle;
 
@@ -42,9 +42,9 @@ the base controller and adds logging a new user registration to it.
 
 .. code-block:: php
 
-    // src/AppBundle/Controller/RegistrationController.php
+    // src/Acme/UserBundle/Controller/RegistrationController.php
 
-    namespace AppBundle\Controller;
+    namespace Acme\UserBundle\Controller;
 
     use Symfony\Component\HttpFoundation\RedirectResponse;
     use FOS\UserBundle\Controller\RegistrationController as BaseController;