b2CircleShape RayCast fix
b2CircleShape RayCast fix

MSylvia/CocosSharp,mono/cocos2d-xna,TukekeSoft/CocosSharp,haithemaraissia/CocosSharp,MSylvia/CocosSharp,hig-ag/CocosSharp,mono/cocos2d-xna,hig-ag/CocosSharp,netonjm/CocosSharp,zmaruo/CocosSharp,netonjm/CocosSharp,zmaruo/CocosSharp,mono/CocosSharp,TukekeSoft/CocosSharp,mono/CocosSharp,haithemaraissia/CocosSharp