Figure out how to make unit/integration tests for AVM clusters

[dfellis]

The current approach of hand-testing this functionality is regression-prone and time-consuming. If we could write another test suite that runs in parallel with the BDD tests, that would be great.

Figuring out how to do this would probably also help us figure out how to integrate alan deploy/anycloud into CI systems, which is another bonus that would also help us figure out ways to make it easier to do.