Add 'Metrics' report type to merge requests

See merge request gitlab-org/gitlab-ee!10452

Add metrics report type to JobArtifact constants

Add sample metrics fixture

Add factories for artifacts with metrics reports

Adds EE spec factories for CI models that can have metrics reports.

Add scopes for CI models with metrics reports

Adds scopes with metrics reports for Pipeline, Builds and JobArtifacts.

Add metrics_reports Premium feature

Implement has_metrics_reports in Pipelines and MRs

Implements EE::Ci::Pipeline#has_metrics_reports? and
EE::MergeRequest#has_metrics_reports?.

Implement metrics CI Report and Parser

Implements Parser and Report types for metrics reports.

Expose metrics reports to the Merge Request

Implements EE::Ci::Build#collect_metrics_reports! and
EE::Ci::Pipeline#metrics_report and exposes metrics report for
consumption by the Merge Request.

Implement metrics reports comparer

Implements a class that compares two metrics reports and selects new,
existing and removed metrics.

Implement Metric report serializer

Implements a serializer for metrics reports to be used in the metrics
reports comparison service.

Implement metrics reports comparison service

Implements Ci::CompareMetricsReportsService that compares two
metrics reports and serializes the result for frontend consumption.

Expose metrics reports comparison in Merge Request

Add Merge Requests controller endpoint for metrics

Implements a Merge Request controller endpoint for querying metrics
reports.

Extract move quick action spec to shared example

Closes #59570

See merge request gitlab-org/gitlab-ce!26907

Port Extract move quick action spec to shared example

See merge request gitlab-org/gitlab-ee!10643

Rewind iid on pipelines

Closes #59362

See merge request gitlab-org/gitlab-ce!26490

Update Node.js to 10.15.3 in CI template for Hexo

See merge request gitlab-org/gitlab-ce!25943

Fix styling for `app/assets/stylesheets/pages/status.scss`

See merge request gitlab-org/gitlab-ee!10858

Externalize several strings in controllers/services/presenters

See merge request gitlab-org/gitlab-ce!27390

- app/services
- app/controllers
- app/presenters

(EE Port) Externalize several strings in controllers/services/presenters

See merge request gitlab-org/gitlab-ee!11045

- app/services
- app/controllers
- app/presenters

Don't render artifact download links for builds with expired artifacts

See merge request gitlab-org/gitlab-ce!26753

Adds instance metrics to usage ping

Closes #53138

See merge request gitlab-org/gitlab-ce!27238

Remove EE-specific code from boards store (CE-backport)

See merge request gitlab-org/gitlab-ce!26924

Remove EE-specific code from boards store

Closes #10013

See merge request gitlab-org/gitlab-ee!10568

If no pipeline is created we currently have IID gap.
This is due to fact that we generate IID not on save,
but rather ahead of time. This results, us,
losing IIDs.

Add depedency proxy models

See merge request gitlab-org/gitlab-ee!10681

Externalize strings in lib/gitlab/quick_actions

See merge request gitlab-org/gitlab-ce!27369

(EE port) Externalize strings in lib/gitlab/quick_actions

See merge request gitlab-org/gitlab-ee!10991

- Externalize strings for desc and explanation
- Update PO file

Autosave description in epics

See merge request gitlab-org/gitlab-ce!27296

When editing an epic, the progress was previously lost due to
lack of localstorage syncing code. This commit adds support for
localstorage sync.

Autosave description in epics

Closes #4681

See merge request gitlab-org/gitlab-ee!10844

When editing an epic, the progress was previously lost due to
lack of localstorage syncing code. This commit adds support for
localstorage sync.

Allow arrays to be specified for fields in graphql_query_for

Closes #60238

See merge request gitlab-org/gitlab-ce!27142

Helm DeleteCommand

See merge request gitlab-org/gitlab-ce!27348

Add pagination to notes and discussions docs

Closes #51616

See merge request gitlab-org/gitlab-ce!27401

Reporting SSL certificate verify errors in CI external config

See merge request gitlab-org/gitlab-ce!26750

Development docs: move some docs content from Handbook and improve content/headings

See merge request gitlab-org/gitlab-ce!27399