* pause - ensure control characters are always set appropriately
On some systems, curses.tigetstr() returns None, which does not work as a control character.
* Add unit tests
* Sort imports
* Skip on older Python
This is an action plugin and only runs on the controller, so no need to test of Python 2. Making
the import hackery work on Python 2 would required some more work which I am not sure is
worth it since we are moving away from Python 2 support on the controller.
* Make the tests work on Python 2 and 3
