6543 a4148c0f12
Repository transfer has to be confirmed, if user can not create repo for new owner ()
* make repo as "pending transfer" if on transfer start doer has no right to create repo in new destination

* if new pending transfer ocured, create UI & Mail notifications
..
notifier.go Repository transfer has to be confirmed, if user can not create repo for new owner ()
null.go Repository transfer has to be confirmed, if user can not create repo for new owner ()