Fix for label width adjustments for multi-line labels.
Fix for label width adjustments for multi-line labels.

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