Resize appropriately for iPhone 5 screen
Clean up GuessWhoVC and add leaderboard button image
Improve UI design with gradient buttons, fonts, etc.
Merge branch 'master' into ui-tweaks

Conflicts:
	LimitlessCaverns.xcodeproj/project.pbxproj
Changed blue gradient button colors
Tweaked blue button color
Fixed up GetStarted UI
Ensure table is positioned correctly in iOS7
Merge branch 'ui-tweaks'