Resolve "Multiple discussions per line in merge request diffs"

Closes #32452

See merge request gitlab-org/gitlab-ce!28748

- all commits squashed to make danger review happy

Replace slugifyWithHyphens with improved slugify text util

See merge request gitlab-org/gitlab-ce!30172

Expound backporting a tad bit

See merge request gitlab-org/gitlab-ce!29918

This bolsters the information in this document, based on questions
recently raised in issue: https://gitlab.com/gitlab-org/release/framework/issues/378

Remove istanbul JavaScript package

Closes #63971

See merge request gitlab-org/gitlab-ce!30232

Fix order-dependent Gitaly specs failing

Closes #64006

See merge request gitlab-org/gitlab-ce!30282

Docs: Fix markdown to reduce number of kramdown warnings (part 1b)

Closes #64055

See merge request gitlab-org/gitlab-ce!30246

Add backticks around square brackets, or fix links, as necessary.

Don't let logged out user do manual order

See merge request gitlab-org/gitlab-ce!30264

Vue-i18n: autofix for app/assets/javascripts/ide directory

See merge request gitlab-org/gitlab-ce!29967

If `spec/tasks/gitlab/cleanup_rake_spec.rb` preceded any of the Gitaly
request specs, it would import the `cleanup.rake` and the global
function `limit`. For some reason, the Protobuf implementation would use
the global function instead of the getter method. For example:

```
def limit
  puts "hi"
end

req = Gitaly::WikiGetAllPagesRequest.new
req.send(:limit)
hi
=> nil
```

To fix this problem, access the field value using the [] operator
instead.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/64006

Update job_artifacts.md to reflect change: https://gitlab.com/gitlab-org/gitlab-ce/issues/31771

See merge request gitlab-org/gitlab-ce!30175

Docs update for visibility restriction on GitLab.com

Closes gitlab-ee#12501

See merge request gitlab-org/gitlab-ce!30203

Add `--globoff` flag to the curl command for Jobs API.

See merge request gitlab-org/gitlab-ce!30118

Docs: Clean up markdown spacing in geo docs

See merge request gitlab-org/gitlab-ce!30112

Spacing following lists should be 2 spaces, and 3 for numbered lists

Wait for 'Uninstall' when installing Prometheus

See merge request gitlab-org/gitlab-ce!30251

Prometheus is uninstallable so waiting won't see 'Install' at all.
We'll see 'Uninstall' instead.

Docs/Comments only: Better autodevops customization documentation

See merge request gitlab-org/gitlab-ce!30247

This will make it more obvious to anyone looking to customize these
files what the source code actually is.

Update doc/user/project/merge_requests/squash_and_merge.md

See merge request gitlab-org/gitlab-ce!30103

Fix typo in updateResolvableDiscussionsCounts action

See merge request gitlab-org/gitlab-ce!30278

Use separate Prometheus metrics dirs in dev/test

Closes #63869

See merge request gitlab-org/gitlab-ce!30253

Use PostgreSQL 9.6.11 in CI tests

See merge request gitlab-org/gitlab-ce!30270

Include username in auth log

Closes #62756

See merge request gitlab-org/gitlab-ce!29821

Fetches user based on the value of 'rack.attack.match_discriminator'

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/62756

Custom username for deploy tokens

See merge request gitlab-org/gitlab-ce!29639

This new attribute is optional and used when set instead of the default
format `gitlab+deploy-token-#{id}`.

Empty usernames will be saved as null in the database.

Related to https://gitlab.com/gitlab-org/gitlab-ce/issues/50228.

Jekyll Pages template: LC_ALL=C.UTF-8

See merge request gitlab-org/gitlab-ce!29907

Add a check for logged out user in the manual order
so that they don't see an flash message when they try to
reorder issues.

Start UnicornSampler in master process

Closes #63830

See merge request gitlab-org/gitlab-ce!30215

Using `on_master_start` assures that the sampler is started in
master process and not in worker processes.

Backports css class used in EE specs

Closes gitlab-ee#12534

See merge request gitlab-org/gitlab-ce!30258

Removes EE differences for app/views/groups/settings/_general.html.haml

Closes gitlab-ee#12537

See merge request gitlab-org/gitlab-ce!30257