added voter for customer, project and activity #34 (#39)

src/TimesheetBundle/Controller/Admin/ActivityController.php

@@ -59,6 +59,7 @@ class ActivityController extends AbstractController
     /**
      * @Route("/{id}/edit", name="admin_activity_edit")
      * @Method({"GET", "POST"})
+     * @Security("is_granted('edit', activity)")
      */
     public function editAction(Activity $activity, Request $request)
     {

src/TimesheetBundle/Controller/Admin/CustomerController.php

@@ -62,6 +62,7 @@ class CustomerController extends AbstractController
     /**
      * @Route("/{id}/edit", name="admin_customer_edit")
      * @Method({"GET", "POST"})
+     * @Security("is_granted('edit', customer)")
      */
     public function editAction(Customer $customer, Request $request)
     {

src/TimesheetBundle/Controller/Admin/ProjectController.php

@@ -59,6 +59,7 @@ class ProjectController extends AbstractController
     /**
      * @Route("/{id}/edit", name="admin_project_edit")
      * @Method({"GET", "POST"})
+     * @Security("is_granted('edit', project)")
      */
     public function editAction(Project $project, Request $request)
     {