* sync charm-helpers to classic charms
* change openstack-origin/source default to quincy
* add mantic to metadata series
* align testing with bobcat
* add new bobcat bundles
* add bobcat bundles to tests.yaml
* add bobcat tests to osci.yaml
* update build-on and run-on bases
* drop kinetic
* add additional unit test https mocks needed since
charm-helpers commit 6064a34627882d1c8acf74644c48d05db67ee3b4
* update charmcraft_channel to 2.x/stable
Change-Id: I2d9c41c294668c3bb7fcba253adb8bc0c939d150