Ark
* move code.gitea.io/git to code.gitea.io/gitea/modules/git * fix imports * fix fmt * fix misspell * remove wrong tests data * fix unit tests * fix tests * fix tests * fix tests * fix tests * fix tests * enable Debug to trace the failure tests * fix tests * fix tests * fix tests * fix tests * fix tests * comment commit count tests since git clone depth is 50 * fix tests * update from code.gitea.io/git * revert change to makefile
* mail notification implement interface * fix file comment year * use NullNotifier as parent struct of notifiers
* add notification interface and refactor UI notifications * add missing methods on notification interface and notifiy only issue status really changed * implement NotifyPullRequestReview for ui notification