Merge pull request #23 from FeverTeam/dev

你要的Frontend和CheckLoginAction。。。
Merge pull request #26 from FeverTeam/dev

更正。
完成登陆操作，首页、我的ppt、会议列表可以正常显示已登录状态
Merge pull request #29 from FeverTeam/dev
已merge
Merge pull request #38 from FeverTeam/dev

修正有关会议和会议观看的bug。
初步完成登陆模块
实现登陆失败，模态提示框提示信息
初步重构会议列表样式
Merge pull request #40 from FeverTeam/dev-cold

Dev cold