* stable-3.1:
UrlFormatter: Fix Javadoc of getSettingsUrl()
Add a separator between blame and the edit icon
Remove target=_self from commentlinks
Update .mailmap
Update .gitreview file
ReceiveCommits: Factor repeated "internal server error" text to a constant
Update .mailmap
Documentation: Add site-path arg to reindex command
Isolate log4j dep
gr-diff-builder: Remove unused function renderSection
Update .mailmap
Cancel deprecation of change identifiers
FakeGroupAuditService: Make auditEvents final
ErrorProne: Increase severity of MutableConstantField to ERROR
ConfigUpdatedEvent: Use immutable type in field declaration
gr-diff-processor: remove unused resolve value
Add missing slf4j dependencies in BUILD file
JGitMetricModule: fix WindowCache miss ration which wasn't reported
Revert "JGitMetricModule: Replace anonymous Supplier instances with method references"
Suppress generic logging on docker start for ElasticSearch container
Replace deprecated OptionParser with ArgumentParser
Documentation: Replace plugins list with home page
Change-Id: I93e54874d7bba26120e609b4ea81a7c41ee88deb