CE upstream - Wednesday

Closes gitlab-com/support-forum#2476

See merge request gitlab-org/gitlab-ee!3121

Signed-off-by: Rémy Coutable <remy@rymai.me>

Move group boards routes under '-' and remove "boards" from reserved paths

Closes #3662

See merge request gitlab-org/gitlab-ee!3078

Add 10.1 CE to EE docs

See merge request gitlab-org/gitlab-ee!3133

Followed the instructions from:
https://gitlab.com/gitlab-org/release-tools/blob/master/doc/release-candidates.md#gitlab-ee

Fix spelling of 'Enterprise'

See merge request gitlab-org/gitlab-ee!3114

Add docs for GKE integration

See merge request gitlab-org/gitlab-ee!3129

Add docs for GKE integration

See merge request gitlab-org/gitlab-ce!14712

Fix a missing link and create a separate "Testing guides" section

See merge request gitlab-org/gitlab-ee!3123

Remove duplicated style

See merge request gitlab-org/gitlab-ee!3118

Port of 39028-repo-by-url-fields to EE

See merge request gitlab-org/gitlab-ee!3125

Prevent failed file syncs from stalling Geo backfill

Closes #3691

See merge request gitlab-org/gitlab-ee!3101

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Cleanup data-page attribute after each Karma test -- EE merge edition

Closes gitlab-ce#38871

See merge request gitlab-org/gitlab-ee!3115

  -  app/assets/javascripts/label_manager.js
  - app/assets/javascripts/main.js
  - app/assets/javascripts/star.js

Simplify project page- EE version

See merge request gitlab-org/gitlab-ee!3093

Remove duplicated test

See merge request gitlab-org/gitlab-ee!3120

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/38871

Conflicts:
	app/assets/javascripts/milestone_select.js

Signed-off-by: Rémy Coutable <remy@rymai.me>

Add ee version of image commenting docs

See merge request gitlab-org/gitlab-ee!3119

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

# Conflicts:
#	app/assets/javascripts/label_manager.js
#	app/assets/javascripts/main.js
#	app/assets/javascripts/star.js
#	app/controllers/projects_controller.rb
#	app/views/projects/project_members/index.html.haml
#	doc/development/README.md
#	doc/development/testing_guide/testing_levels.md
#	doc/user/permissions.md
#	spec/helpers/groups_helper_spec.rb
#	spec/mailers/notify_spec.rb
[ci skip]

Fix a feature spec failing only on MySQL

Closes #39003

See merge request gitlab-org/gitlab-ce!14811

CE Upstream - Monday

Closes gitlab-ce#37534, #3616, #2799, gitlab-design#45, gitlab-design#36, and gitlab-ce#38389

See merge request gitlab-org/gitlab-ee!3098