Cleanup task 4 comments.
Hooked up enabling of segment control
Comments for MVC choices for task 3 added
HW1 Tasks 5 and 6 complete.

5. Drag out a switch (UISwitch) or a segmented control (UISegmentedControl) into your View somewhere which controls whether the game matches two cards at a time or three cards at a time (i.e. it sets “2-card-match mode” vs. “3-card-match mode”). Give the user appropriate points depending on how difficult the match is to accomplish.6. Disable the game play mode control (i.e. the UISwitch or UISegmentedControl from Required Task #5) when flipping starts and re-enable it when a re-deal happens (i.e. the Deal button is pressed).