Restore old behavior around diff notes to outdated discussions

Fixes #18569

See merge request !4870

Fix unwanted label unassignment

## What does this MR do?
- When updating the milestone
  - [x] Do not remove labels when assigning a milestone
  - [x] Do not remove labels when unassigning a milestone
  - [x] Do not remove labels when assigning a milestone and adding another label

- When toggling selected issues labels should be kept
  - [x] Select an issue with an assigned label -> pick another label from dropdown-> unselect the issue -> select the issue again -> submit the form: Existing label should not be removed.

## Are there points in the code the reviewer needs to double check?
Labels should not be added or removed to issues when doing bulk actions unless we explicitly select a label from the dropdown

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !4863

[ci skip]

Set button label when picking an option from status dropdown

## What does this MR do?
Fixes an issue with the status dropdown. It was not setting up the correct label after picking an option

## What are the relevant issue numbers?
Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/18536

## Screenshots (if relevant)

**Previous**

![status-select-previous](/uploads/7c6adbd6c5ba2660dc39a762d53d3b68/status-select-previous.gif)

**After**

![status-select](/uploads/91483efed8fbd63a79a01c9ca2154b74/status-select.gif)

## Does this MR meet the acceptance criteria?

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- [ ] Tests
  - [ ] Added for this feature/bug
  - [x] All builds are passing
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !4771

Use jQuery objects in ref dropdown

## What does this MR do?

Keeps the behaviour the same as the ref dropdown, however it now uses jQuery objects to handle the HTML creation instead of passing strings around. It pretty much worked out the box so not much was changed in the dropdowns themselves. Will be easy to transfer this over to other dropdown menus as well.

cc. @jschatz1 @rspeicher @DouweM 

Do we want this to go into a patch release?

See merge request !4850

Fix 404 for pipelines

## What does this MR do?
Allow to access pipelines of public project by logged guest.

## What are the relevant issue numbers?
Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/17885

## Does this MR meet the acceptance criteria?

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !4881

Fix merge requests project settings help link anchor.

## What does this MR do?

8.9.0 added a new project option for merge requests which has a link for help.   The link contained an anchor which was being encoded as ```%23``` so change the help link to properly configure the anchor.

## Are there points in the code the reviewer needs to double check?

None

## Why was this MR needed?

Current release causes 404 error when clicking on the help link in project settings.

## What are the relevant issue numbers?

Closes #18982

## Screenshots (if relevant)

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !4873

Restrict header logo to 36px so it doesn't overflow.

## What does this MR do?

Fixes the logo in the header.

## Are there points in the code the reviewer needs to double check?

I don't think so.

## Why was this MR needed?

Logos that weren't 36px by 36px were broken in 8.9.0

## What are the relevant issue numbers?

Fixes #18980

## Screenshots (if relevant)

Before:

![Screen_Shot_2016-06-22_at_1.52.54_PM](/uploads/de6e4d9ccf40b972565e3864173a9907/Screen_Shot_2016-06-22_at_1.52.54_PM.png)

After:

![Screen_Shot_2016-06-22_at_1.52.37_PM](/uploads/d72e015263888b5155c1db5e25f54d66/Screen_Shot_2016-06-22_at_1.52.37_PM.png)

## Does this MR meet the acceptance criteria?

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

cc: @jschatz1 @dzaporozhets @rspeicher

See merge request !4861

Fix errors found on importing GitLab CE repo

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/18968

See merge request !4855

Added bottom padding to label color suggestion link

## What does this MR do?

Adds a bottom margin to label color suggestions to make sure that when wrapped there is enough whitespace between color rows.

## Are there points in the code the reviewer needs to double check?

😕

## Why was this MR needed?

Mobile UX.

## What are the relevant issue numbers?

Closes #18857.

## Screenshots (if relevant)

![Screen_Shot_2016-06-22_at_00.31.26](/uploads/f49c7fa2b97b13e69f0dea97c5dfb319/Screen_Shot_2016-06-22_at_00.31.26.png)

## Does this MR meet the acceptance criteria?

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !4845

Hide nav arrows by default

## What does this MR do?
- Fixes the arrow icon flashing on page load
- Removes settings dropdown at higher breakpoint
- Removes unneeded CSS

Closes #18941

## Screenshots (if relevant)
Arrow flashing bug:
![icon](/uploads/3db95626acd0adb37438bdbc2c4aa154/icon.gif)

Settings dropdown breaking nav:
<img src="/uploads/4351035f4cf8cb9fd892b621e6339e50/Screen_Shot_2016-06-21_at_4.25.50_PM.png" width="800px">

@alfredo1 would you mind double checking this to make sure the arrow flashing is definitely not happening?

See merge request !4843

Update Todos documentation and screenshots to include new functionality.

Updates documentation for todos, includes updated and new screenshots.

See also !4502 and #18906

Closes #18923

[ci skip]

See merge request !4840

Handle external issues in IssueReferenceFilter

Handling of external issues was broken when I refactored
`IssueReferenceFilter` to use fewer SQL queries.

Fixes #18827

See merge request !4789

Fix bug in `WikiLinkFilter`.

Closes #18819

- [ ]  #18819 Wiki link filter exception
    - [x]  Make sure [build](https://gitlab.com/gitlab-org/gitlab-ce/commit/6d169d36cabda783116bcb8e2e6f73254566a670/builds) passes
    - [ ]  Wait for merge
    - [ ]  Pick into 8.9

See merge request !4775

Fix subsequent SAML sign ins

Fixes a bug when `auto_link_ldap_user` is `true` that causes SAML users to be unable to sign in a second time.

Fix the problem for https://gitlab.zendesk.com/agent/tickets/22546

See merge request !4718

Fixes header vertical centering.

Fixes header centering.

![ss__2016-05-16_at_5.26.30_PM](/uploads/300b64afc6585023f0e0dbbf721c359a/ss__2016-05-16_at_5.26.30_PM.png)

cc @dzaporozhets

See merge request !4170

Expand on Award Emoji documentation, update/add screenshots.

Adds documentation for award emoji now that comments can be awarded with emojis.

See also !4291 and #18906

Closes #9091

cc: @virtuacreative @axil

See merge request !4839
Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix Network graph links.

## What does this MR do?

Fixes the Network graph links so they no longer link to `/master#{escape_javascript(@commit_url)}`

## Are there points in the code the reviewer needs to double check?

Don't think so.

## Why was this MR needed?

Single quotes don't evaluate Ruby expressions.

## What are the relevant issue numbers?

Fixes #18894.

cc: @jschatz1

See merge request !4832
Signed-off-by: Rémy Coutable <remy@rymai.me>

Clarify artifact expiry

## What does this MR do?

Clarifies documentation about artifact expiry.

## Are there points in the code the reviewer needs to double check?

## Why was this MR needed?

## What are the relevant issue numbers?

## Screenshots (if relevant)

See merge request !4831
Signed-off-by: Rémy Coutable <remy@rymai.me>

Add documentation and examples for configuring cloud storage for registry images.

## What does this MR do?
Adds documentation and examples for configuring cloud storage for registry images.

Waits for backend config to get merged in:
https://gitlab.com/gitlab-org/omnibus-gitlab/merge_requests/816

## What are the relevant issue numbers?

https://gitlab.com/gitlab-org/omnibus-gitlab/issues/1320
## Does this MR meet the acceptance criteria?

- [ ] ~~[CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added~~
- [x] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] ~~API support added~~
- [ ] Tests
  - [ ] ~~Added for this feature/bug~~
  - [x] All builds are passing
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

cc\ @marin

See merge request !4812
Signed-off-by: Rémy Coutable <remy@rymai.me>

Display group/project access requesters separately in admin

## What does this MR do?

It displays the access requesters in a separate list in group & project members pages.

It also harmonize the members counter UI to use `%span.badge` everywhere (in the admin & non-admin members views).

## Are there points in the code the reviewer needs to double check?

No.

## Why was this MR needed?

To not confuse access requesters with actual members.

## What are the relevant issue numbers?

Closes #18871.

## Screenshots

### Group members

| Before | After |
| --------- | ---- |
| ![group-members-before](/uploads/2f15137e073fd3a63bc2cb7b2217cb6c/group-members-before.png) | ![group-members-after](/uploads/5b643974505cfa57783fa0320d3bf8b2/group-members-after.png) |

### Project members

| Before | After |
| --------- | ---- |
| ![project-members-before](/uploads/9c48dcd3736e42de84061b1201ee0b06/project-members-before.png) | ![project-members-after](/uploads/8e04c92ef0bba3de7e2405618632b27d/project-members-after.png) |

### Admin group members

| Before | After |
| --------- | ---- |
| ![admin-group-members-before](/uploads/7fda8c2c94b697bea6655ba892ba45e7/admin-group-members-before.png) | ![admin-group-members-after](/uploads/ea25717001794f75939c679b80308c3a/admin-group-members-after.png) |

### Admin project members

| Before | After |
| --------- | ---- |
| ![admin-project-members-before](/uploads/ba9d3ec52adbda6bb3d45ad9ac5243d3/admin-project-members-before.png) | ![admin-project-members-after](/uploads/3b889a029a9756e9ed2781b45c4dd9cb/admin-project-members-after.png) |

## Does this MR meet the acceptance criteria?

- [x] No CHANGELOG since this is related to the original "request access" MR.
- [ ] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !4798
Signed-off-by: Rémy Coutable <remy@rymai.me>

Resolve "Destroying a project causes post_decline_request to be executed"

## What does this MR do?

Ensure we don't send "access request declined" to access requesters when a project is deleted.

## Are there points in the code the reviewer needs to double check?

I've created a service to decouple the notification sending from the AR model.

## Why was this MR needed?

Because there was an issue.

## What are the relevant issue numbers?

Fixes #18755, #18750.

## Does this MR meet the acceptance criteria?

- [x] No CHANGELOG needed.
- [x] Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !4744
Signed-off-by: Rémy Coutable <remy@rymai.me>

Add some docs for Docker Registry configuration - Relatively important for anyone installing from source

There have been a few issues created because of the lack of documentation for how to configure Docker Registry when installing from source, specifically what the `realm` needs to be and the `service`

These 2 bits of info will stop a lot of headaches 👍

Issues:
https://gitlab.com/gitlab-org/gitlab-ce/issues/17957
https://gitlab.com/gitlab-org/gitlab-ce/issues/17991

See merge request !4738
Signed-off-by: Rémy Coutable <remy@rymai.me>

import/export docs

Added documentation for and closes https://gitlab.com/gitlab-org/gitlab-ce/issues/3050

Also added a couple of rake tasks that might be useful.

See merge request !4732
Signed-off-by: Rémy Coutable <remy@rymai.me>

Document `GIT_STRATEGY` and `GIT_DEPTH`

## What does this MR do?

Documents `GIT_STRATEGY` and `GIT_DEPTH`. Also fixes the TOC since the anchors weren't working.

## Are there points in the code the reviewer needs to double check?

The TOC and the location of the new entries.

## Why was this MR needed?

## What are the relevant issue numbers?

https://gitlab.com/gitlab-org/gitlab-ci-multi-runner/merge_requests/188

## Screenshots (if relevant)

![image](/uploads/eccfd60199d81e6588c13aab817f0eb5/image.png)

![image](/uploads/bbbffe61db64ef17f1fa52907275f3d4/image.png)

/cc @axil @ayufan

See merge request !4720
Signed-off-by: Rémy Coutable <remy@rymai.me>

* Adds pipelines page to CI docs.
* Adds image of pipelines list (although currently missing border that is on other images).
* Changes CI to CI/CD in `/doc` and `/doc/ci`
* Sorts user documentation in `/doc`

Partially fixes #17733.

See merge request !4660
Signed-off-by: Rémy Coutable <remy@rymai.me>

Refactor labels docs

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/18555

See merge request !3347
Signed-off-by: Rémy Coutable <remy@rymai.me>

fix import/export error typo

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/18948

See merge request !4847
Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix auto-MR-close text from branch name

See merge request !4836
Signed-off-by: Rémy Coutable <remy@rymai.me>

[ci skip]
Signed-off-by: Rémy Coutable <remy@rymai.me>

Resolve "Graphs and Wiki subnav"

Styles sub nav in `Wiki` and `Graphs`

Closes #18533

![Screen_Shot_2016-06-15_at_9.32.43_AM](/uploads/111dae6e1b9c7d8038ac88b9be6f76a2/Screen_Shot_2016-06-15_at_9.32.43_AM.png)

cc @dzaporozhets

See merge request !4678

Update mail_room to 0.8.0 to resolve #13357

Update mail_room to 0.8.0 to resolve #13357

Which includes the fix from:
https://github.com/tpitale/mail_room/pull/73

See merge request !4835

Rename Code tab to Repository

As discussed in #18830, this renames the "Code" tab to "Repository".

Screenshot now:

![image](/uploads/a7807dfb5b42f037fe2a44475a4af883/image.png)


See merge request !4807

Update gray block under subnav to match other pages

## What does this MR do?
Makes Compare sub nav full width; replaces gray block with white one to match rest of pages

## What are the relevant issue numbers?
Closes #18934 

## Screenshots (if relevant)
![Screen_Shot_2016-06-21_at_1.14.46_PM](/uploads/43377efe7816b854f48966bcbd96a1cc/Screen_Shot_2016-06-21_at_1.14.46_PM.png)

cc @dzaporozhets 

See merge request !4838

Update browser gem to 2.2.0

A user with a certain browser would hit an Error 500:

```
ArgumentError: invalid value for Float(): "0."
  from browser/accept_language.rb:45:in `Float'
  from browser/accept_language.rb:45:in `quality'
  from browser/accept_language.rb:15:in `each'
  from browser/accept_language.rb:15:in `sort_by'
  from browser/accept_language.rb:15:in `parse'
  from browser/base.rb:13:in `initialize'
  from browser.rb:125:in `new'
  from browser.rb:125:in `block in new'
  from browser.rb:125:in `map'
  from browser.rb:125:in `new'
  from browser/action_controller.rb:15:in `browser'
  from abstract_controller/helpers.rb:67:in `browser'
  from app/views/layouts/_head.html.haml:38:in `_app_views_layouts__head_html_haml__1626593241142487258_59224880'
```

The root cause when the `Accept-Language` header would contain a float for the quality value (e.g. en-GB,en;q=0.v5).

Fixes https://github.com/fnando/browser/issues/241

Seen today via Sentry: https://sentry.gitlap.com/gitlab/gitlabcom/issues/7644/

See merge request !4811

Fixed private forks notice position in forks list

Moves the private forks notification item into the list on the forks page.

Closes #17671.

See merge request !4573

Move pre_process into render_result

This MR moves `Banzai::Renderer.pre_process` into `Banzai::Renderer.render_result`.

The `pre_process` method was called even when its output would be ignored. See 11a5a4f359ee57029dbfcc9185fc6b47243ea2aa for more details.

See merge request !4830

Add missing link to sidekiq metrics in API README



See merge request !4837