Feedback:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7237#note_21627134

Feedback:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7237#note_21627207

Feedback:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7237#note_21626953
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7237#note_21626952

Feedback:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7237#note_21626434

* upstream/master: (1122 commits)
  Update CHANGELOG.md for 8.16.2
  Display project ID in project settings (!8572)
  fixed points from comments to improve code quality
  Update CHANGELOG.md for 8.14.8
  Statisfy eslint
  Add CHANGELOG entry
  Fix access to the wiki code via HTTP when repository feature disabled
  Display fullscreen button on small screens (!5302)
  Prevent removing fields from dropdowns on input elements
  fix for all themes
  Return struct instead of multiple values
  Fix race conditions for AuthorizedProjectsWorker
  Add User#nested_groups and User#nested_projects methods
  Fix spec failure due to timestamp ordering issue in mySQL
  Fixed error with filter keyboard tests
  `can?` already includes the `feature_available?` check
  Test there is no Merge Request button when MRs are disabled
  Ensure the correct Merge Request button is found
  Add 409 conflict tests
  Add CHANGELOG
  ...

[ci skip]

Resolve "regression in commit title bar"

Closes #27013

See merge request !8751

Resolve "Branch index delete button inconsistently spaced and misaligned"

Closes #24895

See merge request !8646

Display project ID

Closes #18350

See merge request !8572

Fix access to the wiki code via HTTP when repository feature disabled

Closes #26518

See merge request !8758

Copying a rendered issue/comment will paste into GFM textareas as actual GFM

See merge request !8597

Color + and - signs in diffs to increase code legibility

Closes #26186

See merge request !8768

Resolve "Line numbers now in copy pasta data"

Closes #27021

See merge request !8706

Fix race conditions for AuthorizedProjectsWorker

Closes #26194 and #26310

See merge request !8701

[ci skip]

Fixed label select toggle not updating correctly

Closes #26119

See merge request !8601

Fix autocomplete initial undefined state (loading)

Closes #26775

See merge request !8667

Prevent removal of input that is the parent dropdown element

Closes #25312

See merge request !8397

Fix CI requests concurrency

See merge request !8760

Backport changes introduced by https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/1078

See merge request !8657

# Conflicts:
#	app/assets/javascripts/lib/utils/common_utils.js.es6

Fix mini-pipeline stage tooltip text wrapping

Closes #27014

See merge request !8771

Display fullscreen button on small screens

Closes #19891

See merge request !5302

EE backport for new application settings update service

See merge request !8665

Fix spec failure due to timestamp ordering issue in mySQL

Closes #26622

See merge request !8778

Fix 500 error for Group#web_url method if nested group

See merge request !8743

Nested groups feature improvemetns

See merge request !8448

Update enviroments.md - example CURL requests had a typo in the URL

See merge request cd ../gdk-ee/

Enable HAML-LINT linters phase 2

Closes #22072

See merge request !8566