feature #4957 Added a mention to the @Security annotation (javiereguiluz)

This PR was submitted for the master branch but it was merged into the 2.6 branch instead (closes #4957).

Discussion
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Added a mention to the @Security annotation

| Q             | A
| ------------- | ---
| Doc fix?      | no
| New docs?     | yes
| Applies to    | 2.6+
| Fixed tickets | -

Commits
-------

ac88a71 Removed an unneeded reference to Symfony 2.4 version
420b338 Added a mention to the @Security annotation

Author: weaverryan

cookbook/security/remember_me.rst

@@ -175,15 +175,15 @@ In the following example, the action is only allowed if the user has the
     The ``security.authorization_checker`` service was introduced in Symfony 2.6. Prior
     to Symfony 2.6, you had to use the ``isGranted()`` method of the ``security.context`` service.
 
-You can also choose to install and use the optional JMSSecurityExtraBundle_,
-which can secure your controller using annotations:
+If your application is based on the Symfony Standard Edition, you can also secure
+your controller using annotations:
 
 .. code-block:: php
 
-    use JMS\SecurityExtraBundle\Annotation\Secure;
+    use Sensio\Bundle\FrameworkExtraBundle\Configuration\Security;
 
     /**
-     * @Secure(roles="IS_AUTHENTICATED_FULLY")
+     * @Security("has_role('IS_AUTHENTICATED_FULLY')")
      */
     public function editAction($name)
     {
@@ -212,5 +212,3 @@ which can secure your controller using annotations:
 
 For more information on securing services or methods in this way,
 see :doc:`/cookbook/security/securing_services`.
-
-.. _JMSSecurityExtraBundle: https://github.com/schmittjoh/JMSSecurityExtraBundle