python-novaclient 5.0.0 release

meta:version: 5.0.0
meta:series: newton
meta:release-type: release
meta:announce: openstack-announce@lists.openstack.org,openstack-dev@lists.openstack.org
meta:pypi: yes
meta:first: no
meta:release:Author: Matt Riedemann <mriedem@us.ibm.com>
meta:release:Commit: Davanum Srinivas <davanum@gmail.com>
meta:release:Change-Id: I61013090c0742a325012f6d75b6c6552fb7064b9
Merge "Deprecate baremetal API and CLI interfaces"