实现新 SDK 中关于指定预转数据处理命令的设定
实现新 SDK 中关于指定预转数据处理命令的设定

http://docs.qiniutek.com/v3/api/io/#uploadToken-asyncOps
http://developer.qiniu.com/docs/v6/api/reference/security/put-policy.html#put-policy-persistent-ops-explanation
anehing/carrierwave-qiniu,huobazi/carrierwave-qiniu,huobazi/carrierwave-qiniu,lazing/carrierwave-qiniu,weizhiwu/carrierwave-qiniu,CocaColaCat/carrierwave-qiniu