Add basic docs for troubleshooting database problems

See merge request gitlab-org/gitlab-ce!15416

Add readme only default project view preference

See merge request gitlab-org/gitlab-ce!15415

Add an attributes bag class as a GitalyClient helper

See merge request gitlab-org/gitlab-ce!15346

Update container repository path reference

Closes #40199

See merge request gitlab-org/gitlab-ce!15417

Resolve "Clicking on GPG verification badge jumps to top of the page"

Closes #40198

See merge request gitlab-org/gitlab-ce!15407

We should allow to use double underscore in the path, and it seems that
our container repository path regexp was outdated.

See https://github.com/docker/distribution/blob/master/reference/regexp.go

Fix Typo in environment create definition

See merge request gitlab-org/gitlab-ce!15413

The option to choose readme only as a users default project view was
restored in !14900

Resolve "Follow-up from "Enable multiple queries per Prometheus graph""

Closes #39861

See merge request gitlab-org/gitlab-ce!15363

Resolve "npm list errors for gitlab-svgs and node-pre-gyp"

Closes #40020

See merge request gitlab-org/gitlab-ce!15340

Update Emoji digests and assets with latest from Gemojione v3.3.0

Closes #32634

See merge request gitlab-org/gitlab-ce!15390

Truncate tree to max 1,000 items and display notice to users

Closes #39746

See merge request gitlab-org/gitlab-ce!15333

Merge branch '40122-only-one-note-webhook-is-triggered-when-a-comment-with-time-spent-is-added' into 'master'

Resolve "Only one note webhook is triggered when a comment with time spent is added"

Closes #40122

See merge request gitlab-org/gitlab-ce!15381

Fix gitlab:backup rake for hashed storage based repositories

Closes #39573

See merge request gitlab-org/gitlab-ce!15400

Merge branch '40186-the-ee_compat_check-job-sometimes-fail-on-the-git-apply-3way-step-for-forks' into 'master'

Always fetch master from the canonical remote

Closes #40186

See merge request gitlab-org/gitlab-ce!15399

fix typo

See merge request gitlab-org/gitlab-ce!15374

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

Rendering ten thousands of tree items consumes a lot of server
time and can cause timeouts in extreme cases. Realistically,
displaying more than 1,000 files is probably not useful so
truncate and show the user a notice instead. 'Find files' can be
used to locate specific files beyond the 1,000 limit.

This way, if a fork's master branch is far behind the canonical's
master, it won't use the tip of the fork's master branch as merge base
and thus won't create a huge and wrong patch file.
Signed-off-by: Rémy Coutable <remy@rymai.me>

Prefer polymorphism over specific type checks in Import service

See merge request gitlab-org/gitlab-ce!15397

Update gitlab-workhorse to v3.3.1

See merge request gitlab-org/gitlab-ce!15371

Raise the QA Capybara's default wait time from 4 to 10

Closes gitlab-qa#103

See merge request gitlab-org/gitlab-ce!15382

Add simple logging to UpdateMergeRequestsWorker#perform

See merge request gitlab-org/gitlab-ce!15360

Remove approvals when in empty MR widget state -- CE backport

See merge request gitlab-org/gitlab-ce!15362

Merge branch '33338-internationalization-support-for-prometheus-service-configuration' into 'master'

Resolve "Internationalization support for Prometheus Service Configuration"

Closes #33338

See merge request gitlab-org/gitlab-ce!15336

Tested on the following platforms that split the emoji into separate
characters currently.
 - Windows 10 FCU
    - Chrome 62.0.3202.89
    - Firefox 57.0b14
    - MS Edge 41.16299.15.0
 - macOS 10.12.6
    - Chrome 63.0.3239.40
    - Safari 11.0.1 (12604.3.5.1.1)
    - Firefox 57.0
 - Ubuntu 16.04
    - Chromium 62.0.3202.75
    - Firefox 56.0

Replace 'charts' with 'chart'

See merge request gitlab-org/gitlab-ce!15385

Update licensing docs to clarify process for node modules

Closes #38007

See merge request gitlab-org/gitlab-ce!14575