支持缓存
缓存图标
缓存文件夹的图标
cache folder icon
mac 开启folder cache
merge
Merge branch 'feature/folder-cache' of github.com:gokuai/fengcloud into feature/folder-cache
修复bug
Merge branch 'feature/folder-cache' into release/20141103
修复消息的bug
更改缓存提示