Add tag push events to project hook api

More information in merge request hook

Bump org-mode to 0.9.9

add HSTS Policy warning

add sign-in count

Source repo is now clickable.

Add parenthesis to function def with arguments.

Add move to html-pipeline-gitlab to changelog

Remove test line without effect because no should.

Improve remove file oommit message textarea placeholder.

Be pragmatic about shelling out

See merge request !1149

Show build coverage in MR

![Screenshot 2014-10-02 18.20.53](https://dev.gitlab.org/uploads/dzaporozhets/gitlabhq/a8ff7b23bd/Screenshot_2014-10-02_18.20.53.png)

See merge request !1148

Fix 500 admin user page

See merge request !1147

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

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

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

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

Conflicts:
	CHANGELOG

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

Gitlab flow edit

Changed GitHub Flow links

See merge request !201

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

Conflicts:
	app/views/projects/merge_requests/_form.html.haml

Fail harder in the backup script

See merge request !1143

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

Improve new file commit message textarea placeholder.

Remove blame lines added leading whitespace.

Replace :erb filter with plain HAML.