python-novaclient 5.1.0 release

meta:version: 5.1.0
meta:diff-start: -
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: Matt Riedemann <mriedem@us.ibm.com>
meta:release:Change-Id: I270e7b5a658c9601368c62c33d44ccf8076effbc
meta:release:Code-Review+1: Sean Dague <sean@dague.net>
meta:release:Code-Review+2: Doug Hellmann <doug@doughellmann.com>
meta:release:Workflow+1: Doug Hellmann <doug@doughellmann.com>
Merge "Make wait_for_server_os_boot wait longer"