Updated openstack/openstack
Project: openstack/requirements  2d9c3c98ba6ec0e39dadca179ab0bc5c7b22a61f
null
Sets the min python-novaclient version to 2.16.0

python-novaclient 2.16.0 introduces RDP support required
by Horizon for the "hyper-v-rdp-console" BP.

Change-Id: I44a0ba108c9272bd6ef7ab71d587367c0eddaaac