Merge branch 'stable-2.14' into stable-2.15

* stable-2.14:
  AbstractQueryChangesTest: Add byMessageMixedCase test
  ElasticContainer: replace the deprecated override
  ElasticVersion: remove redundant private modifier
  ElasticIndexVersionManager: remove unneeded type
  Elasticsearch: make package-private usage explicit

Change-Id: I755cf8369136e4aac9703398cc4ddf950611a7e0
tree: 723ca0916ecdc165e706a0b05deb3b8c9cf7cf19
  1. gerrit-acceptance-tests/
  2. gerrit-elasticsearch/
  3. gerrit-pgm/