Updated for recent cocos2d
Removed more warnings
initial overview
Merge pull request #1 from orta/master

@MJaoudi - Initial Code Review
Works with new version of cocos2d
Gave the Game Over screens a common super class and polished code
"Updated to cocoapods!"
Works with iOS 7, various bug squishing, new textures and updated icon
Updated particle effects, increased particle size and speed on iPad and removed extra imports
Updated icons and updated multiplayer code
Updated background