This patchset implements policy overrides for heat. It uses the
code in charmhelpers.
It also fixes a bug in the actions/domain-setup where it assumes that
the python2 version of openstackclient should be installed, and corrects
this via code in hooks/install and hooks/upgrade-charm.
A sync of charm-helpers is included to bring the latest policyd changes
through to the charm.
func-test-pr: https://github.com/openstack-charmers/zaza-openstack-tests/pull/111
Change-Id: Ia607dc9120cfb03902efb019041b43cf12ade2d3
Closed-Bug: #1741723
98de623820