Updated openstack/openstack
Project: openstack/nova  28902c4f3a4950fe2f74b2f2ec1507f39da003fd

Call controller methods directly in test_evacuate

In API unit testing, making call through WSGI is little bit overhead,
wherever applicable, unit tests can make direct call to controller
methods.

Some unit tests needs WSGI call to tests more than one plugin together.

This patch makes above cleanup in test_evacuate.

Partially implements blueprint v2-on-v3-api

Change-Id: Ia664a9c71d7d62f39a2dbed7605d102526f4520c