Merge branch 'stable-3.5'
* stable-3.5:
Allow polling filesystem to be run on a specified queue
fixup!: Poll the filesystem for new events
Poll the filesystem for new events
Allow events from other primaries to be dispatched
Add ability to drop events by classname
Cleanup the event capturing for diffs
Run formatter on classes
test/docker: Support installing multiple plugins
test/docker/run: Stop caching artifacts
test/docker/run: Clarify --gerrit-war usage
Bump to Gerrit API 3.5.0.1
Add docker tag to docker-tests target
Change-Id: Ie77344b2173cfd62cd88556c0deee59a0d2327ed