Remove old template for apache pre-2.4 and update
openstack_https_frontend.conf to match adapter parameters
Add tox targets to placate CI
Change-Id: I03acf7e3e524b2a15756a07e0a2d13ed88eaefac
The code has shifted to the charm.openstack (at the time of writing)
module that will be included in the built charm, rather than being in
the layer. The idea is to make it easier to test/stub out openstack
charms.
Add unit tests to the adapters, charm and ip parts of the lib to ensure
that the API to the classes remains stable with no unplanned regessions
over time.