Merge remote-tracking branch 'VenDream/master'
完成登陆/注册后聊天显示用户名
基本登出功能完成
添加前端主动获取chatList
添加SHA1加密，修复显示名称BUG
Merge remote-tracking branch 'VenDream/master'
Merge pull request #8 from sujy/master

Merged.