This uses an ActiveRecord subscriber to get queries and calculate the
total query time from that. This means that the total will always be
consistent with the queries in the table. It does however mean that we
could potentially miss some queries that don't go through ActiveRecord.

Making this change also allows us to unify the response JSON a little
bit, making the frontend slightly simpler as a result.

Fix error rendering submodules in MR diffs when there is no .gitmodules

See merge request gitlab-org/gitlab-ce!31162

Prefer `flat_map` over `map` + `flatten`

See merge request gitlab-org/gitlab-ce!31144

Convert several occurrences of `map` + `flatten` to
`flat_map` where applicable.

Without this change, we get a NoMethodError on nil

Add development documentation on label filtering

Closes #49651

See merge request gitlab-org/gitlab-ce!30741

Update dependency @gitlab/ui to ^5.9.0

See merge request gitlab-org/gitlab-ce!31153

The GitLab UI update changed the spinner selector from `spinner` to
`gl-spinner`, so we need to update it, so that our tests won't fail.

Extract Auto DevOps deploy functions in a base image

Closes #50286

See merge request gitlab-org/gitlab-ce!30404

Adds event enum column to DesignsVersions join table

See merge request gitlab-org/gitlab-ce!30745

Support indentation in the markdown editor

Closes #25070

See merge request gitlab-org/gitlab-ce!28914

It will be hooked up to the markdown editor later

Ensure Warden triggers after_authentication callback

See merge request gitlab-org/gitlab-ce!31138

By not triggering the callback:
- ActiveSession lookup keys are not cleaned
- Devise also misses its hook related to session cleanup

CE port of "Stablize editing scope label spec - retry if dropdown is not visible"

See merge request gitlab-org/gitlab-ce!31145

Respect alt email when sending group access notifications

See merge request gitlab-org/gitlab-ce!31089

When sending access granted/rejected emails we should also respect
custom emails set for groups/sub-groups

Feature test for gfm embedding metrics

See merge request gitlab-org/gitlab-ce!30621

Add points how to prepare for database reviews

Closes #65126

See merge request gitlab-org/gitlab-ce!31158

CI Docs update for Marketing

See merge request gitlab-org/gitlab-ce!30440

Update README.md - add CTA to watch Mastering CI/CD webcast and 5 teams that made the switch to GitLab CI/CD article

Add docs for template field in prometheus alerts

See merge request gitlab-org/gitlab-ce!30900

Add Troubleshooting section for Merge Train documentation

Closes #64948

See merge request gitlab-org/gitlab-ce!31033

Add trouble shooting sections

Update links to relative

Closes #61945

See merge request gitlab-org/gitlab-ce!31084

Following the single docs codebase change, all internal links
should be relative. Also cleans up one table

Resolve "Incorrect message interpolation on project listing"

Closes #65088

See merge request gitlab-org/gitlab-ce!31121

Logging sidekiq worker class name in SidekiqMemoryKiller

See merge request gitlab-org/gitlab-ce!30996

Fix outbound_local_requests_whitelist nil for existing ApplicationSetting records

Closes #65096

See merge request gitlab-org/gitlab-ce!31123

It needs to default to an empty array logically.

Add doc about incident issue labels

See merge request gitlab-org/gitlab-ce!31107

Add namespace label toggle

See merge request gitlab-org/gitlab-ce!30935

Added the ability to update the namespace label text for gitlab-managed

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/65126.

Came up in the database office hours call on 2019-07-25.

Add frozen_string_literal to spec/support

See merge request gitlab-org/gitlab-ce!31132

Remove \ from unicorn\_stderr.log

See merge request gitlab-org/gitlab-ce!31159