add different roles for each component (api, scheduler, volume)
take password to database from cinder-api node for cinder-volume
reject admin node in UI for deploy components
Merge pull request #43 from cloudsleuth/pull-req-release-mesa-1.6-master-c16b0abef5029cbb528291f869c39f810f237760

https://github.com/crowbar/barclamp-cinder/pull/43

Merged by devtool for cloudsleuth