Merge branch 'stable-2.16' into stable-3.0
* stable-2.16:
Upgrade elasticsearch-rest-client to 7.3.1
Add .gitreview file
DeleteDraftComments: Don't update change modified timestamp
ChangeIT: set submittableAfterLosingPermissions private
Rebase: Don't swallow caught exception
Output NoteDb migration progress to Flogger
Update git submodules
DefaultChangeReportFormatter: Make constructor and urlFormatter visible
StarredChangesUtil: Fix NPE when ref to be deleted doesn't exist
StarredChangesUtil: Throw LockFailureException on LOCK_FAILURE
Add test for creating a change on a non-existing base change
Rebase: Do not fail with 500 ISE if non-existing change is given as base
Fix detecting changes of parent trees when computing change kind for merge commit
Remove duplicate descriptions of fields in Requirement JSON entity
InternalAccountQuery: Add back the oneByExternalId method
Set version to 2.16.11-SNAPSHOT
Update the newly added .gitreview file to point to stable-3.0.
Change-Id: I717026f02a6a7a14dcab72a166f25c2196a6a6ae
