Updates to novacli and cindercli

 * Removes redundant cindercli behaviors
 * Adds os_auth_system as parameter to cindercli client init.
 * Renames client methods to match CLI names ('create_volume' in
   the cinder client is now just 'create', etc.)
 * Adds the cinder composite.
 * Adds os_region_name and os_auth_system as configurable options
   to cinder config
 * Adds os_region_name to nova config.

Change-Id: I999c39fc9d99b689bf4c8ff967fd8b05c6ee79b3
Merge "Updates to novacli and cindercli"