Merge branch 'stable-2.14' into stable-2.15

* stable-2.14:
  ElasticIndexIT: replace member with local variable
  Elasticsearch tests: remove password duplication

Change-Id: I9d71a0f156621b8c528db979577bd7ebcaf9edaf
tree: d8c449ea0e18968030bd0a04f77e00c916f4c6c9
  1. gerrit-acceptance-tests/
  2. gerrit-elasticsearch/
  3. gerrit-pgm/