Updated openstack/openstack
Project: openstack/glance  81b3c04eca4378d9f2c0f63c8692276cbc1cf5b3

Add ModelSMigrationSync classes

Add classes for testing correspondence between migration scripts
and metadata.
We need oslotest in test-requirements due to bug#1356425

Partial-Bug: #1365436
Change-Id: I0db68ea3557dd9d214ea50ff7c96de1a47a58d4b