Merge branch 'staging' of https://github.com/Unity-Technologies/buildbot into staging

Conflicts:
	master/buildbot/status/web/files/prod/script/project/popup.js
Merge branch 'staging' of https://github.com/Unity-Technologies/buildbot into staging

Conflicts:
	master/buildbot/status/web/files/prod/script/project/popup.js
Merge branch 'staging' of https://github.com/Unity-Technologies/buildbot into staging
Hiding closed branches from the poller

- This fixes the issue we were seeing where the lastRev JSON field was getting too large for the database to handle correctly