Make the worker a class.
Add TODO for cass.create_server, because arguments, they don't make sense.
Add MaasClient.create_entity and tests
Add BobbyWorker.create_server, and accompanying tests
Use the new BobbyWorker code.
Use BobbyWorker._get_maas_client
Apply policies to new server
Add MaasClient.delete_entity and tests
Add BobbyWorker.delete_server with tests
Use BobbyWorker.delete_server from the views
Remove unneeded API calls
Use BobbyWorker.create_group in the views
Add BobbyWorker.delete_group and tests
Fix the tests...
Update apiary docs
Merge pull request #21 from rackerlabs/auto-558-entity-creation

Auto 558 entity creation