add sign-in count

add sign-in count to admin section profile view
add HSTS Policy warning

Add warning about HSTS header as it means user will need to provide secure connection access to site for next 24 months from page view. See https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security for more details.
Source repo is now clickable.
Factor issue and edit MR form label field and submit.
Remove test line without effect because no should.
Improve remove file textarea placeholder.
Fail harder in the backup script

This change also shows the output of failed Git commands during the
backup.
Apply ZEN mode to all GFM forms
Hook attributes
Edit GitHub Flow url
Merge branch 'backup_fail_hard' into 'master'

Fail harder in the backup script

See merge request !1143
Merge branch 'factor-issue-mr-form-label' of https://github.com/cirosantilli/gitlabhq

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Conflicts:
	app/views/projects/merge_requests/_form.html.haml
Merge branch 'master' of dev.gitlab.org:gitlab/gitlabhq
Add new milestone link. Hide empty milestone selectbox

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
New label link

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Factor commit message textareas.
Update the help/update docs to include omnibus as well.
Merge branch 'gitlab_flow_edit' into 'master'

Gitlab flow edit

Changed GitHub Flow links

See merge request !201
Merge branch 'missing_update_links' into 'master'

Missing omnibus update links in help/update

I took the liberty and refactored it a little. Open issue https://gitlab.com/gitlab-org/omnibus-gitlab/issues/269

Here is a screen

![gitlab_update_page](https://gitlab.com/uploads/axil/gitlab-ce/0395154f23/gitlab_update_page.png)

See merge request !202
Try signing in the user after user confirmation is correct and redirect to dashboard, otherwise redirect to signin page