fix bug 49641687: For closed opening/interviews' edit, the already disabled hiring-manager/interviewer should still show in the the page but not editable
add up and down arrow mark for the columns ordering
[50580821] add default checked checkbox to the add-feedback dialog
add active scope for User to fetch all active users
Merge remote-tracking branch 'vmw-tmpst/master' into some-modification

Conflicts:
	app/views/openings/_form.html.slim
Merge remote-tracking branch 'vmw-tmpst/master' into some-modification

Conflicts:
	app/assets/stylesheets/application.css
	app/views/interviews/index.html.slim
Merge pull request #200 from whywhy36/some-modification

Some modification