Nginx upsync 1.8.x#93

zexuan wants to merge 4 commits into

weibocom:nginx-upsync-1.8.xweibocom/nginx-upsync-module:nginx-upsync-1.8.xfrom

zexuan:nginx-upsync-1.8.xzexuan/nginx-upsync-module:nginx-upsync-1.8.xCopy head branch name to clipboard