BUG-16953 reformatting
BUG-16953 Move registry actions in tests from relayed client operations to direct registry service interactions, drop HBase test that's moved to slider-core now
BUG-16953 client adding more operations, though the "registry" command is not yet hooked up
BUG-16953 adding args for registry operations 
Merge branch 'feature/BUG-16953_CLI_to_enum_documents_from_service_instances' into develop
Merge branch 'develop' of github.com:hortonworks/slider into develop