看到最新版本3.4中CCFileUtils的头文件中注释：
/** Helper class to resolve files with resolution-specific suffixes (ie -hd) to actual file paths, including fallbacks.
@warning CCFileUtils should no longer be used by developers! CCFileUtils will be deprecated in an upcoming Cocos2D version!
Consider CCFileUtils a private API and this documentation only for instructional purposes and “historical” reference. Unfortunately
too many such references exist so that it would be a disservice to developers not to document the details of CCFileUtils,
no matter how much we all §/&")$/$! what CCFileUtils has grown into.
那最新版本用什么替换这个类呢？最新版本如何区分普清图片，高清图片呢？到底这个论坛有人用cocos2d吗？