Use RecentChanges::save to add RC rows

Will send Flow actions to RC feeds and extensions like CheckUser

Bug: 60275
Change-Id: Ie248485ed28538e01e898afc62395ed9a2b8aed3
(cherry picked from commit 9b391165af9fb063713232f09d2785baaa8aa8c9)
Abort email notifications coming out of RecentChange

Cherry picking based on Legoktm's comment on bug

Bug: 60275
Change-Id: I8e3a42666c85920d0b50c8272f6f0db30055fd2b
(cherry picked from commit d5ddad162fa358fbfd6e3fbfbb4ffc65f68d1aca)
Merge "Use RecentChanges::save to add RC rows" into wmf/1.23wmf11