Support "Review Changes" and "Block Changes" settings for Owners package "Auto Review"
This is a bit copy-pastey from DifferentialReviewersHeraldAction, which doesn't feel awesome. I think the right fix is Glorious Infrasturcture, though -- I filed T10967 to track that.
- Set package autoreveiw to "Review".
- Updated, got a reveiwer.
- Set autoreview to "blocking".
- Updated, got a blocking reviewer.
Reviewed By: chad
Differential Revision: https://secure.phabricator.com/D15916