RightsSetter::updateOnePositive

private function updateOnePositive(array $oldRight, array $newRight)
{
	$rightsManager = Driver::getInstance()->getRightsManager();
	if(!$rightsManager->containsOperationInTask($rightsManager::OP_READ, $oldRight['TASK_ID']))
	{
		//simple appendOnePositive
		return true;
	}

	if(!$rightsManager->containsOperationInTask($rightsManager::OP_READ, $newRight['TASK_ID']))
	{
		//? delete old right?
		return true;
	}

	//shame. It is false.
}