[ES] Logging for indexer

See merge request !683

Remove deprecated note from GitHub importer documentation

### Related issues

https://gitlab.com/gitlab-org/gitlab-ee/issues/904

See merge request !685

Only show the message if user is not the owner

Closes #323

See merge request !628

8-11-stable-ee to master



See merge request !686

 Conflicts:
	app/assets/javascripts/application.js
	app/assets/javascripts/boards/boards_bundle.js.es6
	app/assets/javascripts/boards/components/board.js.es6
	app/assets/javascripts/boards/components/board_list.js.es6
	app/assets/javascripts/boards/mixins/sortable_default_options.js.es6
	app/assets/javascripts/boards/models/label.js.es6
	app/assets/javascripts/labels_select.js
	app/assets/javascripts/protected_branch_access_dropdown.js.es6
	app/assets/stylesheets/pages/boards.scss
	app/assets/stylesheets/pages/builds.scss
	app/assets/stylesheets/pages/pipelines.scss
	app/controllers/projects/boards/issues_controller.rb
	app/controllers/projects/merge_requests_controller.rb
	app/helpers/blob_helper.rb
	app/helpers/ci_status_helper.rb
	app/models/ci/pipeline.rb
	app/models/diff_note.rb
	app/models/note.rb
	app/models/project.rb
	app/views/discussions/_diff_with_notes.html.haml
	app/views/projects/boards/components/_board.html.haml
	app/views/projects/boards/components/_card.html.haml
	app/views/projects/ci/pipelines/_pipeline.html.haml
	app/views/projects/merge_requests/widget/_open.html.haml
	app/views/projects/notes/_hints.html.haml
	app/views/projects/protected_branches/_create_protected_branch.html.haml
	app/views/shared/issuable/_filter.html.haml
	app/views/shared/issuable/_form.html.haml
	app/views/shared/issuable/_label_page_default.html.haml
	config/application.rb
	db/schema.rb
	doc/user/project/protected_branches.md
	features/steps/project/merge_requests.rb
	spec/controllers/autocomplete_controller_spec.rb
	spec/controllers/projects/discussions_controller_spec.rb
	spec/features/boards/boards_spec.rb
	spec/features/protected_branches/access_control_ee_spec.rb
	spec/features/protected_branches_spec.rb
	spec/fixtures/api/schemas/issue.json
	spec/lib/ee/gitlab/ldap/sync/group_spec.rb
	spec/workers/elastic_indexer_worker_spec.rb

Doc slash commands loc



See merge request !678

Additional documentation on protected branches for EE



See merge request !677

Change slash commands docs location



See merge request !5937

Document protected branches new behavior



See merge request !5934

Documentation for Issue Boards

## What does this MR do?

Add documentation for issue boards.

## What are the relevant issue numbers?

- Issue: https://gitlab.com/gitlab-org/gitlab-ce/issues/17907
- Backend MR: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5548
- Frontend MR: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5554

See merge request !5713

Split Koding admin/user docs

Backend/Frontend MR https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5909

See merge request !5938

Add Ruby 2.3 upgrade notes.

The 8.10 to 8.11 docs didn't mention Ruby 2.3, now they do.

See merge request !5940

Fix location of markdown help

Resolves #21208, and incorrect link to the markdown style guide

See merge request !5945

Fix for update 8.10-to-8.11.md doc.

Fixed a typo in the docs to update Ruby.

See merge request !5941

Remove tab stop from issuable form added by description templates

See merge request !5929

Fix typo in gitlab-workhorse header

See merge request !5891

Bump SimpleCov merge timeout to 365 days

## What does this MR do?

In case that CI pipeline fails because of intermittent errors in one of the jobs, when someone retries the only failing job located in the middle stage, the job that calculates compound coverage that is configured in later stage, and triggered after retrying job in the pipeline, will still return an accurate coverage value.

Closes #21144

See merge request !5932

Fixed enter key in search input not working

## What does this MR do?

Fixes a bug where the enter key wouldn't search in the top nav search input

Closes #20627 

See merge request !5888

Fix project namespace links

#### What does this MR do?
Fixes pipeline links

#### Why was this MR needed?
Links went to a 404 on fork MR pipelines tab

#### What are the relevant issue numbers?
Closes #21107

See merge request !5912

Fix incorrect "stopped impersonation" log message

Minor bug: Usernames were swapped in the log message.

Closes #21015

See merge request !5949

Also check if Akismet is enabled, before showing the `Submit as spam` button.

Fixes #21229

See merge request !5948

Fix Spinach branches spec

I broke master by adding a branch to gitlab-test for https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5961, which put the branch in this scenario off the first page 😆 

See merge request !5964

Fix file links on project page Files view

## What does this MR do?

Fix the project show page when the default view is set to Files so that the links work.

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

I can't figure out what caused this to break 😕 

## What are the relevant issue numbers?

Closes https://gitlab.com/gitlab-com/support-forum/issues/959.

## Does this MR meet the acceptance criteria?

- [x] [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) (N/A)
- [x] API support added (N/A)
- Tests
  - [x] 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 !5933

Fix typo in gitlab_flow.md



See merge request !674

* upstream/master: (622 commits)
  won't -> want
  Change location of slash commands in notes widget
  Fix docs not rendering the pipe symbol
  Change location of slash commands docs
  Conform to doc styleguide on new features
  Add changelog items to protected branches docs
  Document the new behavior of protected branches
  Don't have factories trip a validation
  Use snake_case for Ruby variables
  Make Rubocop happy
  Pluralize dropdown label
  Add comments explaining methods functionality
  Remove irrelevant comment
  Display error message if user load fails.
  Use Object.keys instead of underscore allKeys method
  Improve dropdown $wrap definition
  Use previously defined constants to compare level types
  Improve selector to get dropdown related input
  Use typeof instead of _.isFunction
  Provide accessLevel to instante dropdown classes
  ...

typo: won't -> want



See merge request !680

Split Koding admin/user docs

From CE https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5938

See merge request !679

Doc slash commands loc



See merge request !678

Additional documentation on protected branches for EE



See merge request !677