[50970455] no need for sign-in/sign-out flash message

Signed-off-by: Henry Chen <hchen@vmware.com>
[50967603] background for dialog

Also use a better-resolution background image
Signed-off-by: Henry Chen <hchen@vmware.com>
Merge pull request #230 from Henry-CF/dialog

[50967603] background for dialog
[50949589.part1] show interviewers at multi-lines

Also overwrite the default background image for dialog's button bottom panel

Signed-off-by: Henry Chen <hchen@vmware.com>
Merge branch 'master' of https://github.com/vmw-tmpst/heroapp-LetsHire into dialog
style the schedule interviews page
add unified style for view pages and list pages
Merge remote-tracking branch 'vmw-tmpst/master' into schedule_interviews

Conflicts:
	app/views/users/index.html.slim
fix typo
[PT 50956037] candidate details page styling
[PT 50956037] candidate details page styling
[PT 50956037] candidate details page styling
Job Opening Chart on dashboard does not show digital.
Merge pull request #232 from whywhy36/schedule_interviews

Schedule interviews
hide the prev or next button in some occasions
Merge pull request #231 from Henry-CF/interviewers

[50949589.part1] show interviewers in multi-lines
Merge pull request #234 from whywhy36/some-fix

hide the prev or next button in some occasions
change the errorExplanation style
add dismiss button for notice flash (bootstrap style)
fix the duplicated edit icon issue