[CE] Don't run checks for changed refs when specific changes are unknown

See merge request gitlab-org/gitlab-ce!23990

Documentation: Make correction to URL, from https://about.gitab.com/handbook/documentation/...

See merge request gitlab-org/gitlab-ce!24137

Make correction to URL, from https://about.gitab.com/handbook/documentation/ to https://about.gitlab.com/handbook/documentation/ (I searched to see if this is a duplicate of an existing fix, didn't find one)

Update `include` parameter usage description

See merge request gitlab-org/gitlab-ce!24118

Fix clone URL not showing if protocol is HTTPS

Closes #55896

See merge request gitlab-org/gitlab-ce!24131

Resolve "Add markdown editing buttons to the file editor"

Closes #27861

See merge request gitlab-org/gitlab-ce!23480

Add Knative metrics to Prometheus

See merge request gitlab-org/gitlab-ce!23972

GitLab 11.6.2 fixed the case for HTTP. However, HTTPS still did
not work because the protocol returned to `http_enabled?`
was the actual protocol in use (e.g. `https` instead of `http`).

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/55896

Added Comment to user avatar Image, Changed Fixtures to created ones, added shadow color

See merge request gitlab-org/gitlab-ce!23768

Integrate mobile CSS framework into specific frameworks

Closes #54386

See merge request gitlab-org/gitlab-ce!23301

Force popover-header to size 14px instead of rems

Closes gitlab-ee#8941

See merge request gitlab-org/gitlab-ce!24065

CE Port of "(Part 1) FE multiple approval rules settings - empty state"

See merge request gitlab-org/gitlab-ce!24087

Add rel=me to user's website link

See merge request gitlab-org/gitlab-ce!24089

rel=me links allow cross-linking of user's identities. This behavior is
used by software to determine if user controls profiles on two different
sites. For example Mastodon uses it to display verified badge on links.

Both Twitter and GitHub automatically add rel=me to links added to
users' profiles.

See: https://www.zylstra.org/blog/2018/10/mastodon-rel-me/
See: http://microformats.org/wiki/rel-me

Drop Webhooks from project import/export config

Closes #53513

See merge request gitlab-org/gitlab-ce!24121

Remove unnecessary top margin in modal header titles

Closes #55883

See merge request gitlab-org/gitlab-ce!24108

Collapsible Comments Test for Issues

Closes #52617

See merge request gitlab-org/gitlab-ce!22985

Fix deprecation: Using positional arguments in integration tests

See merge request gitlab-org/gitlab-ce!24110

Webhook URLs were recently encrypted in the database via
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/21645, and as a
result they are no longer exported. When an exported project with
Webhooks is imported, the project import service will fail with
`URI::InvalidURIError: bad URI(is not URI?)` due to a blank URL.
We avoid this by disabling the export/import of Webhooks in
the first place.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/53513

Use reports syntax for Dependency scanning job

Closes #54844

See merge request gitlab-org/gitlab-ce!24081

Allow basic auth on go get middleware

Closes #45055

See merge request gitlab-org/gitlab-ce!23497

Update GITLAB_SHELL_VERSION to 8.4.4

See merge request gitlab-org/gitlab-ce!24106

Bump minitest to 5.11.3 to match Gitaly version

See merge request gitlab-org/gitlab-ce!24070

Add requirements for Auto SAST

See merge request gitlab-org/gitlab-ce!24104

Use OpenShift in docs and Web UI instead of Openshift

Closes #55860

See merge request gitlab-org/gitlab-ce!24097

Update gems in Gemfile and qa/Gemfile to be consistent

See merge request gitlab-org/gitlab-ce!24112

Prefer to use after_transition

Closes #55306

See merge request gitlab-org/gitlab-ce!24107

This will allow developers to run `bundle install` on both directories
and avoid additional calls to RubyGems for local development. Also sets
up the possibility of improved caching as mentioned in
https://gitlab.com/gitlab-org/gitlab-ce/issues/55843.