Implemented Pause Menu. Implemented Pro vs Classic game modes. Implemented temporary How to Play screens. Fixed Facebook image resolution. Change free letter logic (8-13 letters = 1 freebie, 14-21 = 2 freebies, 22+ = 3 freebies). Changed puzzle time to min 30 seconds, 5 second increments for each additional letter up to 2 minute max. Different duration, red square, and points for Pro vs Classic difficulties. UI tweaks. Bug fixes.