fix pb to absolute path
fix pb to absolute path

wanmaple/MWFrameworkForCocosLua,wanmaple/MWFrameworkForCocosLua,wanmaple/MWFrameworkForCocosLua,wanmaple/MWFrameworkForCocosLua,wanmaple/MWFrameworkForCocosLua,wanmaple/MWFrameworkForCocosLua,wanmaple/MWFrameworkForCocosLua