tree a7c3eb8765a34a841d4572c36d4f98daa9dd9a75
parent e290f3eec4ad2560d40fc258dc707568572f8f28
author David Kranz <dkranz@redhat.com> 1423594850 -0500
committer David Kranz <dkranz@redhat.com> 1423601101 -0500

Change some small compute clients to return one value and update tests

This includes availability_zone, certificates, extensions, instance_usage,
migrations, tenant_usages.

Partially implements: blueprint clients-return-one-value

Change-Id: I2a8ec52e177c865de1f159f556aa7adcf5ef0399