Merge branch 'issue#346' of github.com:loveky/19wu into loveky-issue#346
add check in sub-menu,
check in code use 3-digit number instead of letter.
fixed rspec error.
use angular controller to implement check in.
add check in jasmine test.
mysql do not support millisecond, use hour, minute and second to present check in code.
refactory check in feature test.
fixed #368 , redirect to last url after sign in.
Merge pull request #376 from saberma/saberma-enhancement/346-check-in-page-use-submenu

签到页面显示子菜单