- Fixed Card class __repr__ output.  Was improperly outputting suits
- Changed Card tests to use different suits in different tests
- Added numCards() method to CardCollection which gets the current number of cards left in the collection
- Added tests for numCards() method
- Added cardsLeft() method to Deck class, which just calls numCards() function in the CardCollection class
- Added tests for Deck class
- Made Deck class a subclass of the CardCollection class
- Rewrote Deck class tests to support change
Merge branch 'master' of https://github.com/Ductapemaster/RummyAI