Enable Gitaly ref name caching for discussions.json

See merge request gitlab-org/gitlab-ce!29951

Re-add ignore_column for import columns

See merge request gitlab-org/gitlab-ce!29959

Improve #has_metrics? and Environment#has_terminals?

See merge request gitlab-org/gitlab-ce!29847

Docs: link to predefined env variables reference more evident

Closes #62845

See merge request gitlab-org/gitlab-ce!29857

This `ignore_column` was present for a while but recently removed, but
to ensure we don't get error 500s let's keep it for a while.

This eliminates many potential duplicate FindCommit RPCs for the same
ref, which often occurs in the RelativeLinkFilter#current_commit call.
On the GitLab 12.0 release post, for example, this would save close to
400 RPC calls.

[ci skip]

Add Copy to Clipboard CE Backport

See merge request gitlab-org/gitlab-ce!29906

Resolve "Display in admin area if emails are verified or not"

Closes #49814

See merge request gitlab-org/gitlab-ce!29669

App label warning for deploy boards

See merge request gitlab-org/gitlab-ce!29740

As Auto DevOps deployments both label and annotations, that will be
included in the deploy board so need to warn at all.

Merge branch '63513-ensure-gitlab-jsoncache-includes-the-gitlab-version-in-the-cache-key' into 'master'

Include the GitLab version in the cache key for Gitlab::JsonCache

See merge request gitlab-org/gitlab-ce!29938

Upgrade prettier to latest (v1.18.2)

See merge request gitlab-org/gitlab-ce!29943

Add confirmation for registry image deletion

Closes #42399

See merge request gitlab-org/gitlab-ce!29505

Adds a modal to let the user confirm their action before
proceeding to registry/image deletion

Upgrades prettier to the latest version, and auto-corrects files with
yarn prettier-all-save

The diffs all seem to stem from formatting changes in brackets within
template literals. Nothing major.

Relevant changelogs here:

https://prettier.io/blog/2019/04/12/1.17.0.html
https://prettier.io/blog/2019/06/06/1.18.0.html

Remove Gemnasium dead link from docs

See merge request gitlab-org/gitlab-ce!29942

Documentation for Prometheus Service Discovery

Closes #63110

See merge request gitlab-org/gitlab-ce!29811

Updating documentation to include
Prometheus Service Discovery. Added
monitoring node documentaiton as
well as documentation for the
individual service nodes.

Avoid storing backtraces from Bitbucket Cloud imports in the database

See merge request gitlab-org/gitlab-ce!29862

Make HTML and text emails for new issues uniform and add the mail to mailer previews

Closes #58065

See merge request gitlab-org/gitlab-ce!29886

Mention Container Scanning NFS bug and how to fix it

Closes gitlab-ee#11429

See merge request gitlab-org/gitlab-ce!29908

Clean up the web terminals docs

See merge request gitlab-org/gitlab-ce!29929

Renders pre-release tag for pre-releases

See merge request gitlab-org/gitlab-ce!29797

- Clarify that they are available only for private Runners
- Merge the two sections of file syncing into one

Update rouge

See merge request gitlab-org/gitlab-ce!29541

https://github.com/rouge-ruby/rouge/blob/master/CHANGELOG.md#version-341-2019-06-13

Merge branch '63406-selecting-a-line-in-ci-job-trace-using-triple-click-selects-the-previous-line-also' into 'master'

Fix copying a single line from Firefox

Closes #63406

See merge request gitlab-org/gitlab-ce!29832

Add ability to reorder issues

See merge request gitlab-org/gitlab-ce!29012

Add packages nav to group sidebar [CE backport]

See merge request gitlab-org/gitlab-ce!29592

Don't show private keys for letsencrypt certs

See merge request gitlab-org/gitlab-ce!29359

Adds enum certificate_source to pages_domains table
with default manually_uploaded

Mark certificates as 'gitlab_provided'
if the were obtained through Let's Encrypt

Mark certificates as 'user_provided' if they were uploaded through
controller or api

Only show private key in domain edit form if it is 'user_provided'

Only show LetsEncrypt option if is enabled by application settings
(and feature flag)

Refactor and fix some specs to match new logic

Don't show Let's Encrypt certificates as well

to support manual sorting on the frontend

Sanitize LDAP output in Rake tasks

Closes #56131

See merge request gitlab-org/gitlab-ce!28427