git客户端第一次使用，设置用户名和密码

Guides: Tell git your user name and email address  
Git needs to know your username and email address to properly tag your commits. This is normally done on a global level: 

[~]$ git config --global user.name "lubin" 
[~]$ git config --global user.email lubin.z@gmail.com 
You can override these settings on a per-repo basis: 

[~/path/to/repo]$ git config user.name "lubin" 
[~/path/to/repo]$ git config user.email lubin.z@gmail.com 
This change will only affect future commits. Past commits will retain the username and address they were committed with. 
**********到这里就好了*******
Some tools will assume your github config is in the same place (http://github.com/blog/180-local-github-config):

[~]$ git config --global github.user lubin 
[~]$ git config --global github.token 6ef8395fecf207165f1a82178ae1b984 

我只使用了前两步设置成功。