Replace Create factory methods with constructors - CCSpawn, CCSequence, CCDelayTime, CCActionTween, CCTargetedAction, CCRepeatForever

https://github.com/mono/cocos2d-xna/issues/33
https://github.com/mono/cocos2d-xna/issues/16
https://github.com/mono/cocos2d-xna/issues/25
https://github.com/mono/cocos2d-xna/issues/38
https://github.com/mono/cocos2d-xna/issues/36
https://github.com/mono/cocos2d-xna/issues/35