Resolve "Reduce Redis usage from merge request diffs caching"

Closes #44191

See merge request gitlab-org/gitlab-ce!17746

Drop jquery-rails gem from Gemfile

Closes #44306

See merge request gitlab-org/gitlab-ce!17771

Add labeled issues seed

Closes #41724

See merge request gitlab-org/gitlab-ce!17754

Add slash command for moving an issue

See merge request gitlab-org/gitlab-ce!17691

Manually escape '#' when building relative uris, closes #42459

Closes #42459

See merge request gitlab-org/gitlab-ce!17679

Carried over from https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/8857

Introduce CI/CD variables collection

Closes #33042

See merge request gitlab-org/gitlab-ce!14439

Remove RSpec warnings from `spec/models/ci/build_spec.rb`

See merge request gitlab-org/gitlab-ce!17755

Fix concurrency issue with migration for user_interacted_projects table.

Closes #44205

See merge request gitlab-org/gitlab-ce!17728

Add HTML style guide

See merge request gitlab-org/gitlab-ce!17616

This may lead to some being evicted and having to be cached again, but many MRs
get closed or updated in that time anyway.

Previously, we kept them all in the cache. We don't need the highlight results
for older diffs - if someone does view that (which is rare), we can do the
highlighting on the fly.

Add frontend guide principles

See merge request gitlab-org/gitlab-ce!17613

Update README.md

See merge request gitlab-org/gitlab-ce!17344

Prevent sending an access request from failing when the project has invited masters/owners

See merge request gitlab-org/gitlab-ce!17760

Fix moving local, unhashed upload or pages directories during group transfer

Closes #43993

See merge request gitlab-org/gitlab-ce!17658

Add me as proofreader

See merge request gitlab-org/gitlab-ce!17593

add Indonesian proofreader

See merge request gitlab-org/gitlab-ce!17579

Prettier Phase 1: Prettier Configuration, Prettifying of files and documentation

See merge request gitlab-org/gitlab-ce!17695

Change path of CI lints create index.js file

Closes #44181

See merge request gitlab-org/gitlab-ce!17751

Update net-ssh 4.1.0 -> 4.2.0 (Fixes #21734)

Closes #21734

See merge request gitlab-org/gitlab-ce!17688

Update ruby-saml to 1.7.2 and omniauth-saml to 1.10.0 (CVE-2017-11428, CVE-2017-11430)

Closes #43806

See merge request gitlab-org/gitlab-ce!17734

update fog-aws 1.4 -> 2.0

See merge request gitlab-org/gitlab-ce!17708

Update acts-as-taggable-on to 5.0

See merge request gitlab-org/gitlab-ce!17689

Update sentry-raven 2.5.3 -> 2.7 (Fixes #24029)

Closes #24029

See merge request gitlab-org/gitlab-ce!17709

Update octokit 4.6.2 -> 4.8

See merge request gitlab-org/gitlab-ce!17738

Update ruby-prof 0.16.2 -> 0.17.0

See merge request gitlab-org/gitlab-ce!17710

The concurrency issue originates from inserts on
`user_interacted_projects` from the app while running the post-deploy
migration.

This change comes with a strategy to lock the table while removing
duplicates and creating the unique index (and similar for FK
constraints).

Also, we'll have a non-unique index until the post-deploy migration is
finished to speed up queries during that time.

Closes #44205.

When the route action is create it defaults to new, this saves us having multiple files for the same route

Closes #44181

Update httparty 0.13.3 -> 0.15.6

See merge request gitlab-org/gitlab-ce!17737