* stable-2.16:
Set version to 2.16.1-SNAPSHOT
Set version to 2.15.8-SNAPSHOT
ElasticTestUtils: Factor common code out of ElasticReindexIT/ElasticIndexIT
Add support for Elasticsearch 6.5.0
Add Marco Miller as a developer in pom.xml files
Fix: Invalid operation for forward only resultset : first
Set version to 2.16
Set version to 2.14.17
Change-Id: I8065c31911125fa414452f75fc83290f80cd705e