Updated openstack/openstack
Project: openstack/glance  99fb66ca80cb0f6f4c3e25b1907a9bf6c630fdb1
null
Use common db migrations module from Oslo

Changes due to use common migration module instead of Glance
implementation.
Removed glance.db.sqlalchemy.migration module and related code.

blueprint db-use-oslo-common-code

Change-Id: Ib7e2e478a84a90cc9c773f2733dc60b88834fd23