Add Procfile

Add Default and Duke ability tests

Add tests for Assassin and Captain abilities.

Refactor ternary into Math.min

Begin testing the card abilities

Add additional test and refactor a mock controller into a beforeEach

Add chai spies and refactor the mocha arguments.

Add istanbul as a dev dependency

Add coverage reports and some LandingController tests.

Merge test-tests.

If a player quits before the game starts, properly handle their removal

Fix and test handling when a player quits the game.

Add tests for the GameCollection class.

Test the order property on the collection values.

Make the exists method a little more general.