fix column ordering in department
fix bug 50159411
[Bug 48470177] fix date time format bug
fix duplicated dialog instances bug
Merge pull request #190 from Chunjie/master

[Bug 48470177] fix date time format bug
redirect to the referer page when feedback saved successfully
Merge pull request #191 from Henry-CF/interview

[50155723] show 'no interviewers' error in 'schedule interviews' page.
Merge remote-tracking branch 'vmw-tmpst/master' into feedback

Conflicts:
	app/views/openings/index.html.slim
Merge pull request #192 from whywhy36/feedback

1. fix some bugs of feedback dialog
2. redirect to the original page when feedback saved successfully
fix header padding
Merge pull request #193 from whywhy36/fix-header-padding

fix header padding
tune up Candidate/Interview pages

1 support assign job opening in new candidate page
2 change column for candidates list page
3 support some column ording for cadidates list page
4 support interviews' pagination

Signed-off-by: Henry Chen <hchen@vmware.com>