Merge pull request #125 from mono/master

Replace Create factory methods with constructors - CCEaseXX
A brief rundown of the CC2d family tree.
beginning of windows 8 support in box2d and a windows GL build.
Merge branch 'master' of https://github.com/totallyevil/cocos2d-xna
Replace Create factory methods with constructors - CCEaseExponentialXX