Refresh the board only when it's necessary and add a link on the task title

controllers/base.php

@@ -14,6 +14,7 @@ abstract class Base
         $this->task = $registry->task;
         $this->user = $registry->user;
         $this->comment = $registry->comment;
+        $this->event = $registry->shared('event');
     }
 
     public function beforeAction($controller, $action)

controllers/board.php

@@ -276,7 +276,8 @@ class Board extends Base
         }
 
         $this->response->json(array(
-            'result' => $this->board->saveTasksPosition($this->request->getValues())
+            'result' => $this->board->saveTasksPosition($this->request->getValues()),
+            'refresh' => $this->event->getLastListenerExecuted() !== ''
         ));
     }
 }