Replace Foo.Create() Factory method with constructor - CCAction, CCRotateBy, CCRotateTo, CCFollow

This also removes the public method InitWithXXXX and makes them private.  They are still used internally.

https://github.com/mono/cocos2d-xna/issues/9
https://github.com/mono/cocos2d-xna/issues/10
https://github.com/mono/cocos2d-xna/issues/15