Merge branch 'stable-3.6' into stable-3.7

* stable-3.6:
  Split integrations tests into separate Bazel targets.
  Extract base test class for regular and async acceptance tests
  Allow additional refs fallback to apply-objects
  Stop creating redundant replication tasks from stream-events
  Add event creation time to the apply object payload
  Don't read git submodule commits during replication
  Expose implicit dependency with the multi-site plugin
  Ignore remote ref-updated stream events for replication
  Increase test time to 900 seconds
  Revert "Add documentation regarding Bearer Token Authentication set up."
  Dont copy pull-replication.jar into lib folder in Dockerfile
  Adapt to the renamed events-broker.jar build artifact
  Don't shade org.eclipse.jgit.transport package
  Fix eclipse project generation
  Fix entrypoint.sh in example-setup with broker
  Add documentation regarding Bearer Token Authentication set up.
  entrypoint.sh: Fix setting JAVA_OPTS variable
  Make the code build on Java 8
  Run apply-object before the ref-updated stream event
  Add extra logging when replication tasks are merged

Change-Id: I832d2ca094b501b4a3306c3114220b27a2005017