Now copy/paste can be performed without being grapped by application's actions.
Another bug when removing object fixed (dynamic_cast instead of static_cast) in DelegateItem.
/* this is performed because when removing delegated from scene while it contains flash content, segfault happens because of QGraphicsScene::removeItem() */
/* this is performed because when removing delegated from scene while it contains flash content, segfault happens because of QGraphicsScene::removeItem() */