Merge pull request #6142 from gdamjan/master

Check specifically for Unicorn in rack config.ru file
Do not branch from master until release is done.
Jira integration documentation.
Embed screenshot.
Need ! to embed.
 Merge branch 'jira-integration' into 'master'

Jira Integration
 Merge branch 'release-procedure' into 'master'

Release Procedure

This should be in line with what is actually happening.
 Merge branch 'oudated-version-headers' into 'master'

Oudated Version Headers

If we don't update version numbers we should not include them since they are confusing.
 Merge branch 'ssh-docs' into 'master'

Ssh Docs
 Merge branch 'development_seed_fix' into 'master'

Development  Project Seed Data Fix

After this commit https://dev.gitlab.org/gitlab/gitlabhq/commit/1d2bdb4d5880bb1ad39b62c81ff2971aa0cb3798 Contexts were replaced with Services. One context remained in the seed data which means development seeding will fail.

@dzaporozhets Do we want to backport this to 6.5 too?

/cc @jacobvosmaer @sytse
 Merge branch 'report_backup_db_success' into 'master'

Report success/failure of DB backup commands
MergeRequests services

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Fix mr update issue if merge_request_diff missing

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Merge branch 'master' into reference_relative_links

Conflicts:
	spec/models/project_spec.rb
 Merge branch 'improve/mr_service' into 'master'

Improve merge request accepting logic

Add locked state to merge request during `accept` action.
Prevents mr being `triggered as merged` twice (hooks, emails etc)
Fixes #998 #729
Allow developers to mange issue tracker

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Improve authorization for new/edit blob pages

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
 Merge branch 'improve/developer_permissions' into 'master'

Permissions: Developer can manage issue tracker now
 Merge branch 'reference_relative_links' into 'master'

Reference style links with relative links in markdown

#996

```
Adds relative links support to reference style links, eg:

[GitLab API doc directory][GitLab API directory listing]

[Maintenance][Maintenance rake task]

\[GitLab API directory listing]: doc/api/
\[Maintenance rake task]: doc/raketasks/maintenance.md
```
Add files to path blacklist.
Remove empty ErrorsController