Create CI/CD-only projects by URL -- CE backport

See merge request gitlab-org/gitlab-ce!17342

Don't error out in system hook if user has `nil` datetime columns

Closes #43871

See merge request gitlab-org/gitlab-ce!17543

Make oauth provider login generic

See merge request gitlab-org/gitlab-ce!8809

Release libgit2 cache and open file descriptors after `git gc` run

See merge request gitlab-org/gitlab-ce!17506

Deleting a user would fail in the system hooks if the user had
`nil` column in `datetime` or `updated_at` fields.

Closes #43871

Use host URL to build JIRA remote link icon

Closes #31081

See merge request gitlab-org/gitlab-ce!17541

See https://gitlab.com/gitlab-org/gitlab-ee/issues/3839

Conflicts:
	app/assets/javascripts/projects/project_new.js
	app/views/shared/_import_form.html.haml
	ee/app/controllers/ee/projects_controller.rb
	ee/spec/features/projects/new_project_spec.rb
	locale/gitlab.pot

Resolve "SSH key add text"

Closes #43829

See merge request gitlab-org/gitlab-ce!17527

Reduce usage of deprecated *_with_namespace methods

See merge request gitlab-org/gitlab-ce!17523

Projects and groups badges API

See merge request gitlab-org/gitlab-ce!17082

Cleanup after adding MR diff's commit_count

Closes #41698

See merge request gitlab-org/gitlab-ce!17513

Remove impersonate token from flash scope in UI

See merge request gitlab-org/gitlab-ce!17480

Keep note commit around if commit_id is present

Closes gitaly#1054

See merge request gitlab-org/gitlab-ce!17496

Port Labels Select dropdown to Vue

See merge request gitlab-org/gitlab-ce!17411

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Try not to hold env and release the controller after the request.

See merge request gitlab-org/gitlab-ce!16847

Closes gitaly#1054

Resolve "Not seeing "mentioned in commit" system message after merging"

Closes #43809

See merge request gitlab-org/gitlab-ce!17524

Incorporate Gitaly's RPCs for Gitlab::Git::LfsChanges

Closes gitaly#1048

See merge request gitlab-org/gitlab-ce!16973

Add support for :all option to {count,find}_commits

See merge request gitlab-org/gitlab-ce!17464

Render htmlentities correctly for links not supported by Rinku

Closes #41719

See merge request gitlab-org/gitlab-ce!17180

New `/wip` quick action on MR creation

Closes #26848

See merge request gitlab-org/gitlab-ce!17463

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Merge branch '37430-projects-comparecontroller-show-is-calling-gitaly-n-1-times-per-request' into 'master'

Resolve "Projects::CompareController#show is calling Gitaly n+1 times per request"

Closes #37430

See merge request gitlab-org/gitlab-ce!17439

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

#43691: DiffNotes not counted by ContributionsCalendar

Closes #43691

See merge request gitlab-org/gitlab-ce!17418

Loading spinner not stop even on errors in updating Milestone on Issue

Closes #43837

See merge request gitlab-org/gitlab-ce!17507

* processes any pending records which are not migrated yet
* bumps import_export version because of new commits_count attribute
* removes commits_count fallback method