Additonal changes:
* switch oslo related parameters to $::os_service_default
as they are used in oslo defines
* update unit tests
* update docs for oslo parameters
Change-Id: I4f813444fbf141abe7f10b3aef7d1aa314ac0ac4
Additonal changes:
* switch oslo related parameters to $::os_service_default
as they are used in oslo defines
* update unit tests
* update docs for oslo parameters
Change-Id: I4f813444fbf141abe7f10b3aef7d1aa314ac0ac4