rbd: add params and deprecate glance_api_version

- Add all cinder rbd params
- Update documentation/tests
- Deprecate glance_api_version to avoid duplicate definition
  with cinder::glance class.
  (use glance_api_version of cinder::glance class instead.)

Conflicts: manifests/volume/rbd.pp

(cherry picked from commit 388bf2ebb78e30bc5226ed276caaa1a06d2fee22)
Change-Id: I50cb2b3deb4bf89b374c063f61eea99e1885906e
Merge "rbd: add params and deprecate glance_api_version" into stable/havana