extract api_host
format
define a argument named putPolicyObj
remove useless argument in PutPolicy.prototype.getFlags
add some init option in PutPolicy as qiniu docs
remove duplicate insertOnly flag
get flag in order as qiniu docs
update io.test.js to fix ci error
verify argument whether is  object
fix rs.test.js for ci
fix for ci again
update readme to make ci run again? will work?
Merge pull request #124 from SunLn/develop

少量重构、新增上传策略参数