* stable-2.15:
StarredChangesUtil: Handle unexpected format of reviewed/unreviewed labels
Fix migration of mute stars
Test that change is reindexed when change is starred/unstarred
Suggest "is:private" in autocompete
Trigger GitRefUpdatedEvent when star labels are updated
Trigger GitReferenceUpdated event when account or change sequence is updated
Fix bad rounding of relative dates like '1 year, 12 months ago'
Fix test of RelativeDateFormatter
Trigger GitReferenceUpdated event when external IDs are updated
Increase the value of GERRIT_FDS parameter
Add rel="external" to link to CLA
Fix invalid operator invalidating web session
Address test flakiness in gr-project-detail-list
Update patchset selector styles
Change-Id: I4ec66d2d53c9fbe98878fa02585724db2eda216a
ac1ad53b90