aspect ratio fixes
+ NSCopying protocol for deck duplication
+ ViewDidLayoutSubviews - is called be the system too many times and rearranging cards messes up with the animation. This must be fixed. The animation sequence sometimes has hiccups because of this. WIP.
+ Score label is tied to the UI, but in the Set game the logic is not yet completely implemented. WIP.
+ Replaced mechanism in model to keep trace if there are more matches available. (aRandomMatch) - Although it needs some beatification. WIP.
+
fixed string format issues reported by xCode-6 env.
bugs fixes