Code review comment for lp://qastaging/~rconradharris/nova/backup_schedule_extension

Personally, I don't think that code should be added to Nova that depends on half-baked projects. And half-baked projects that have a bunch of new dependencies, like "requiem" and "flask". If tempo is going to be an OpenStack project, it already is going down the path of wildly divergent code paths for handling stuff that multiple OpenStack projects already handle in a fairly common fashion. Just sayin -- heading further and further away from common coding style and policies.