Port from CE: Resolve Markdown unordered lists not conforming to styleguide

See merge request gitlab-org/gitlab-ee!8437

Fix typos

See merge request gitlab-org/gitlab-ee!9046

Fix a URL typo in the MR API specs

See merge request gitlab-org/gitlab-ce!24236

Update pg 0.18.4 -> 1.0

See merge request gitlab-org/gitlab-ce!17829

Resolve "Danger GitLab reference check should be more precise"

Closes #55709

See merge request gitlab-org/gitlab-ce!24234

Switch use of Rack::Request to ActionDispatch::Request (EE)

See merge request gitlab-org/gitlab-ee!9060

CE port of "e2e QA tests for Group level project templates"

See merge request gitlab-org/gitlab-ce!23987

e2e QA tests for Group level project templates

Closes #7392

See merge request gitlab-org/gitlab-ee!8863

Merge branch '50224-rails5-duplicate-key-value-violates-unique-constraint-index_gpg_signatures_on_commit_sha' into 'master'

Resolve "[Rails5] duplicate key value violates unique constraint "index_gpg_signatures_on_commit_sha""

Closes #50224

See merge request gitlab-org/gitlab-ce!24226

Adjusts duplicated line when commenting on unfolded diff lines (in the bottom)

Closes #56051

See merge request gitlab-org/gitlab-ce!24201

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

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

CE Backport: Add library helpers to use in Roadmap

See merge request gitlab-org/gitlab-ce!24232

Disable resolve conflicts for protected branches

Closes #53463

See merge request gitlab-org/gitlab-ce!23842

EE port of mr-widget-conflicts-protected-branch

Closes gitlab-ce#53463

See merge request gitlab-org/gitlab-ee!9052

Add feature spec for Release page MVC

See merge request gitlab-org/gitlab-ce!24143

Fixes missing margin in releases block

Closes #56076

See merge request gitlab-org/gitlab-ce!24229

Adds `newDate` helper to copy date object without keeping reference.
Adds negative length support in `getTimeframeWindowFrom` to go
back in time.

Document how to run frontend tests

Closes #53757

See merge request gitlab-org/gitlab-ce!24202

Add headers to files in the tree list on merge requests

Closes #54807

See merge request gitlab-org/gitlab-ce!23954

CE backport of "Track export issues CSV usage on GitLab.com with Snowplow"

See merge request gitlab-org/gitlab-ce!24217

Resolve "Track import issues CSV usage on GitLab.com with Snowplow"

Closes #8775

See merge request gitlab-org/gitlab-ee!9067

Without this, sometimes we will get a unique constraint violation about
GPG signatures on MySQL.

Remove comma from issuable email

See merge request gitlab-org/gitlab-ce!24218