Resolve "Cannot search with keyword "merge""

Closes #41666

See merge request gitlab-org/gitlab-ce!16462

Refactor of buttons _dropdown partial

Closes #41921

See merge request gitlab-org/gitlab-ce!16486

Fix typo in doc_styleguide.md

See merge request gitlab-org/gitlab-ce!16481

Change user settings column width

See merge request gitlab-org/gitlab-ce!16479

Fix top-area inconsistent capitalization

See merge request gitlab-org/gitlab-ce!16476

Resolve "Enable Project Milestone Deletion via the API"

Closes #41476

See merge request gitlab-org/gitlab-ce!16478

Enables project milestone deletion via DELETE /projects/:id/milestones/:milestone_id

Fix error on changes tab when merge request cannot be created

Closes #41460

See merge request gitlab-org/gitlab-ce!16409

Added imports for milestone dispatcher routes

See merge request gitlab-org/gitlab-ce!16387

Merge branch '42074-rspec-spec-lib-gitlab-background_migration-deserialize_merge_request_diffs_and_commits_spec-rb-spec-services-system_note_service_spec-rb-fails' into 'master'

Resolve "rspec spec/lib/gitlab/background_migration/deserialize_merge_request_diffs_and_commits_spec.rb spec/services/system_note_service_spec.rb fails"

Closes #42074

See merge request gitlab-org/gitlab-ce!16487

We should use this limit everywhere, but especially in project search results,
where we could be highlighting very long single lines. (Typical examples:
minified JavaScript, and JSON data files.)

A file containing /:\d+:/ in its contents would break the search results if
those contents were part of the results, because we were splitting on colons,
which can't work with untrusted input.

Changing to use the null byte as a separator is much safer.

Fixed merge request status badge not updating after merging

See merge request gitlab-org/gitlab-ce!16470

Migrate Commit#uri_type to Gitaly

Closes gitaly#915

See merge request gitlab-org/gitlab-ce!16453

Resolve "Error while searching for text starting with slash "/""

Closes #36571

See merge request gitlab-org/gitlab-ce!16455

Update 'removed assignee' note to include old assignee reference

Closes #30101

See merge request gitlab-org/gitlab-ce!16301

Merge branch '41809-auto-devops-performance-docker-image-not-compatible-with-gitlab-runner' into 'master'

Include updated AutoDevOps template with Browser Performance using DinD

Closes #41809

See merge request gitlab-org/gitlab-ce!16373

If the schema changes after 20171114162227 for any of these models, and specs
after this one use factories, then those factories will use the models with
outdated column information cached.

We shouldn't really use factories in migration specs, but this is a special case
because there is a lot of git-related setup code in the model that would be
painful to copy to the migration. Instead, we just manually reset the column
information for the models we could pollute.

Docs: document new redirect for Disqus comments

See merge request gitlab-org/gitlab-ce!16327

Update marked to 0.3.12

Closes #42055

See merge request gitlab-org/gitlab-ce!16480

Remove block + interpolation to simplify the calls to link helpers

Remove erroneous text in shared runners page that suggested more runners available

Closes #42059

See merge request gitlab-org/gitlab-ce!16483

Ensure CI pipelines and builds have the correction project associations

See merge request gitlab-org/gitlab-ce!16448

Closes #42059

CE: Override module to specify that we're overriding

See merge request gitlab-org/gitlab-ce!16131

Docs: deprecates articles index

Closes #41138

See merge request gitlab-org/gitlab-ce!16469

Make forking protect default branch on completion

Closes #19493

See merge request gitlab-org/gitlab-ce!16449

Migrate importing repository to Gitaly

Closes gitaly#907

See merge request gitlab-org/gitlab-ce!16431

Resolve "Managed Prometheus deployment installs a lot of extra stuff"

Closes #41799

See merge request gitlab-org/gitlab-ce!16378

Use an at_exit hook to stop test gitaly

Closes #41991

See merge request gitlab-org/gitlab-ce!16433