Updated openstack/openstack
Project: openstack/nova  92dd1fb05b79bc7130bf5661deeb8483ec765fd5
null
Set default auth_strategy to keystone

It doesn't make much sense to default to no authentication in
production. We should always have production ready defaults.

DocImpact Changing default config option.

Change-Id: Ife63dc7ab680fcf0588d95c98fc9f29901485c64