标签：mis pre blog err hub logs github flow div
fatal: refusing to merge unrelated histories：
git pull origin master --allow-unrelated-histories
SSH key problem：
http://stackoverflow.com/questions/12940626/github-error-message-permission-denied-publickey
标签：mis pre blog err hub logs github flow div
原文地址：http://www.cnblogs.com/jiujiaoyangkang/p/6444936.html
