^^^^^
Mon Feb 27 2017
* Fix docstrings for placement directives.
* Implement Model.add_machine()
* Bug fix - "to" parameter to Model.deploy() was broken
* Add docs and examples for adding machines and containers and deploying
charms to them.
* Make Machine.destroy() block the current coroutine, returning only after
the machine is actually removed from the remote model. This is more
consistent with the way the other apis work (e.g. Model.deploy(),
Application.add_unit(), etc).
* Raise NotImplementedError in all unimplemented method stubs instead of
silently passing.