Add Elasticsearch 6 support Remove predefined version from formula Start using states instead of modules in client.sls Update test repos to mirror.mirantis.com Update tests to use ES6 Disable all x-pack features Change-Id: I7f5a65b0777f2ebce9bd3aae79888d2b00d428b6 Prod-Related: PROD-25122
Add a possibility to deploy Elasticsearch 5.x version Elasticsearch 2.x version is deployed by default Change-Id: I78e714807cf5925a9619961ab145f27ef0210652