Comment on any expanded diff line on MRs

See merge request gitlab-org/gitlab-ce!22398

Copy changes for abuse clarity

Closes #51589

See merge request gitlab-org/gitlab-ce!22148

(EE Port) Assign approvers based on code owners

See merge request gitlab-org/gitlab-ce!22513

Fix broken link to Vagrant box

See merge request gitlab-org/gitlab-ce!22859

Resolve "`parallel` job keyword MVC"

Closes #21480

See merge request gitlab-org/gitlab-ce!22631

Add dynamic timer to delayed jobs

See merge request gitlab-org/gitlab-ce!22382

Fix links to product features

See merge request gitlab-org/gitlab-ce!22860

Remove gitlab-ui loading icon from global

See merge request gitlab-org/gitlab-ce!22724

Re-implemented image commenting on diffs

Closes #48956

See merge request gitlab-org/gitlab-ce!22443

Merge branch '52771-ldap-users-can-t-choose-private-or-internal-when-creating-a-new-group' into 'master'

Fix new group visibility form for non-admins

Closes #52771

See merge request gitlab-org/gitlab-ce!22468

CE port: Remove instance autocomplete_service variable

See merge request gitlab-org/gitlab-ce!22847

Update issue_workflow.md: team labels

See merge request gitlab-org/gitlab-ce!22800

CI/CD coverage docs: fix pytest-cov regex

Closes #48613

See merge request gitlab-org/gitlab-ce!22842

Fix bug with wiki page create message

Closes #50890

See merge request gitlab-org/gitlab-ce!22849

Fix statement timeouts in RemoveRestrictedTodos migration

Closes #52649

See merge request gitlab-org/gitlab-ce!22795

Use merge request prefix symbol in event feed title

Closes #36267

See merge request gitlab-org/gitlab-ce!22449

Add a helper method to append path to a base URL

See merge request gitlab-org/gitlab-ce!22854

Little typo in markdown.md

See merge request gitlab-org/gitlab-ce!22851

In Ruby 2.4, `URI.join("http://test//", "a").to_s` will
remove the double slash, however it's not the case in
Ruby 2.5. Using chomp should work better for the intention,
as we're not trying to allow things like ../ or / paths
resolution.

This helper method append path to host, making sure
there's one single slash as path separator.

Removes an owner permission check before rendering the visibility
select radio inputs as non-admins will not have permission.

Ensures all users creating a group can select its visibility.

In EE, there is need to call `merge_requests_for_source_branch`
before calling CE's `refresh_merge_requests,
in order to obtain the old diffs.

However that requires `@push`,
initialized inside CE's refresh_merge_requests.

However it can't be set early in EE, or static analysis would fail
because use of instance variables in module is discouraged.
So @push is set in execute instead.

Fetch database columns directly if available

Suitable for testing old and new paths involved for each file in diff