Finished Required Task 4, added a "Deal" button to start a new game and reset appropriate UI elements.
Added the UISegmentedControl for Required Task 5 to the Storyboard as well as some code to change the height. I also made some layout changes to make it look nice. It is not hooked up to anything yet.
Added ability for PlayingCard to match using 3 cards and award points appropriately based on difficulty of match. This is some of the groundwork for Required Task 5.