Add Esc shortcut to close menu

Signed-off-by: Mavridis Philippe <mavridisf@gmail.com>

src/menuhandler.cpp

@@ -375,9 +375,11 @@ bool MenuHandler::eventFilter( TQObject *o, TQEvent * e )
         break;
       }
 
+      case TQt::Key_Escape:
+        close();
+
       default:
         return false;
-        break;
     }
     return true;
   }