Cases tested:  
- Separator  
- Divider  
- Header

Basic Intent: Allow all branch names without accidentally creating
layout or backstage DOM. e.g. a branch named `separator` should never
create a separator `li` element.  

Ideally, there should never be a string that could cause this kind of 
conflict.  

Implementation: All of `GitLabDropdown.renderItem` is extracted to a 
standalone module.  

To render a divider or separator, consumers must now pass in an object 
like `{ "type": "divider" }` or `{ "type": "separator" }`   

Notable choices:  
- All of the functions have a cyclomatic complexity of 3 or less
    - See: https://en.wikipedia.org/wiki/Cyclomatic_complexity
    - Note the "Correlation to number of defects" section
    - While software complexity may not have a directly causal
      relationship with defects, less complex software is generally
      easier to reason about, and **may** reduce defects.
      I personally try to maintain complexity of no higher than 3.
- Everything other than the branch names fix matches past behavior 
exactly
    - Including:
        - Unused variables
        - Class list order

Enable mock setup to make onboarding development easier

See merge request gitlab-org/gitlab-ee!15492

- it used to be complicated to setup your local environment
  in order to work on the onboarding tour.  Full of
  temporary changes that would need backed out
- now we can work on it merely by enabling the Feature flag
  :user_onboarding

Add pod status for review-app release in debug

See merge request gitlab-org/gitlab-ee!16522

Remove EE specific checks

See merge request gitlab-org/gitlab-ee!16513

Remove orphaned project registries

Closes #13158

See merge request gitlab-org/gitlab-ee!15021

[Backend] Step 3 API for trials

See merge request gitlab-org/gitlab-ee!16339

We need to create Leads when customers are requesting a trial for
GL.com. In order to do it we're going to use a service that will call a
custom endpoint on the subscription portal.

Ensure right order of processing multipart requests

See merge request gitlab-org/gitlab-ee!16461

[EE] Fix broken master by ensuring the EE version of ListIssue is imported if available

Closes #31797 and #31798

See merge request gitlab-org/gitlab-ee!16506

Add warning about LE wildcard certificate for pages

See merge request gitlab-org/gitlab-ce!32643

Apply suggestion to doc/user/project/pages/custom_domains_ssl_tls_certification/lets_encrypt_integration.md

Create self-monitoring project in background migration

See merge request gitlab-org/gitlab-ce!32819

- A regular migration caused problems such as
https://gitlab.com/charts/gitlab/issues/1565.

Fix encoding error in MR diffs

Closes #61841

See merge request gitlab-org/gitlab-ce!32862

Fix code docs for RuboCop's helper methods

See merge request gitlab-org/gitlab-ce!32937

`(const nil :Foo)` vs `(const nil? :Foo)`

Add end-to-end test for issue board focus mode

Closes gitlab-org/quality/testcases#182

See merge request gitlab-org/gitlab-ee!16300

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

Fix member expiration not always working

Closes #67286

See merge request gitlab-org/gitlab-ce!32951

Setup counter for Productivity Analytics

See merge request gitlab-org/gitlab-ce!32915

This change sets up a usage counter for productivity analytics feature.

Track usage data for analytics features

See merge request gitlab-org/gitlab-ee!16431

- Track page view counts for Group Cycle Analytics.
- Setup counter for Productivity Analytics and track page view counts.
- Add changelog entry

Productivity Analytics: Add error handling for reporting on groups which have no plan

Closes #13571

See merge request gitlab-org/gitlab-ee!15291

- Display an error illustration in case the
API responds with 403 for a given group_id
- Update PO file
- Update sepcs
- Add changelog entry

Removed padding from project filter field

See merge request gitlab-org/gitlab-ce!32706

Resolves a regression caused by https://bit.ly/2k1GozA

Fix merge_request_spec test

See merge request gitlab-org/gitlab-ce!32867

Merge branch '50847-automatically-created-mr-uses-wrong-source-branch-when-branching-from-tag' into 'master'

Resolve "Automatically created MR uses wrong source branch (when branching from Tag)"

Closes #50847

See merge request gitlab-org/gitlab-ce!32392

Creating a MR from an issue using a tag as ref correctly creates the
source branch starting from the tag.