Merge pull request #27 from jlfex/yl_dev1226

Yl dev1226
1: 注册流程合并，优化
2：重写邮件发送，采用GreenMail
3: 发送激活邮件:采用模板配置
Merge branch 'master' of https://github.com/jlfex/hermes into yl_dev1226