Merge pull request #3 from simlegate/master

 重构cells,适用widge完成基本的异步CURD
Merge pull request #4 from simlegate/master

fix new room and members bug
密码显示与隐藏
重构cells，用widge
设置默认没有内容的页面
Merge branch 'master' of github.com:Byronlee/password-family
编辑和删除的UI 设计
Merge pull request #5 from simlegate/master

rm test files
complete room and member update and destory
Merge branch 'master' of github.com:simlegate/password-family