Updated openstack/openstack
Project: openstack/nova  b257afc9590cc276be64eed890248b40bf910e73

Refactor of test case of floating_ips

This patch is prepare for porting floating_ips to v2.1,
and make v2.1 and v2 share same test cases.

Change-Id: I7ba202adeb7d65f1e04c36e8db647565c1fcaeb2