Initial test that changestate returns a dict of lists
Placeholder docstring for a missing one found
Start of more realistic test with given config
fixes #243
An ugly start to implementation
Use model_from_configuration instead of private methods
Moved difference-finding logic into Deployer class
Fixed flake8 errors
Placeholders for tests for Change Node
Test for empty case of change_node_config
Merge pull request #255 from ClusterHQ/handle-yaml-errors-243

Handle yaml parse errors in the CLI.

Fixes #243.
More complete tests for change_node_config
Flake8 and TODOs
Clarified tests with docstrings and minor changes
Docstring test class
Start of test for no changes needed
Removed TODO
Test for the /vagrant directory instead of vagrant user.
Fix incorrect docker image name
Test that dead units are listed