Method undoAction

UnitTests/TestApp/ActionDestroyData.cpp:36–43

	}

	void ActionDestroyData::undoAction()
	{
		DataManager::getInstance().getRoot()->addChild(mData);

		DataManager::getInstance().invalidateDatas();

		mComplete = false;
	}

	void ActionDestroyData::setData(Data* _data)
	{