This backports a line from EE so that both the CE and EE code are
identical.

This refactors API::Settings so that EE can more easily extend its
behaviour, without having to modify the CE source code directly.

This moves various constants previously defined in API::Services to the
API::Helpers::ServicesHelpers module, using class methods instead of
constants. This allows EE to extend the returned values, without having
to modify the CE source code directly.

This refactors API::Search so that Enterprise Edition can more easily
extend its functionality, without having to modify the file directly.

This moves API::ResourceLabelEventsHelpers::EVENTABLE_TYPES to a class
method in a separate helper module, allowing EE to redefine it without
having to directly modify the source code.

This adds a method to API::Internal that returns the URL to use for LFS
authentication tokens. This makes it possible for EE to redefine this
behaviour, without having to directly modify the source code.

Similar to creating groups in the groups API, EE injects custom code
just before we update an existing group. Moving the update logic to a
separate method in CE allows EE to more easily extend it.

EE has some custom behaviour that needs to run before and after creating
a group in the API. By moving the group creation logic to a separate
method, EE can easily extend this behaviour; without having to directly
modify the API source code.

This replaces API::Notes::NOTEABLE_TYPES and
API::Discussions::NOTEABLE_TYPES with class methods defined in a
separate helper modules. This allows EE to extend the list of noteable
types, without having to modify the constant in-place. We can't define
these methods directly in the API classes, as they would be used before
we're able to extend them in EE.

De-quarantine project activity test

Closes gitlab-org/quality/staging#21

See merge request gitlab-org/gitlab-ce!25630

Types::BaseField accepts authorize after reload

See merge request gitlab-org/gitlab-ce!25694

Update Gitaly docs now NFS isn't required anymore

See merge request gitlab-org/gitlab-ce!25397

CE Add error string formatter for stylelint

See merge request gitlab-org/gitlab-ce!25668

Resolve some Rake task differences

See merge request gitlab-org/gitlab-ce!25644

Resolve "Move files in the Web IDE"

Closes #49397

See merge request gitlab-org/gitlab-ce!25431

- fixed test spec
- added warning only if file is deleted

CE backport of issuable-ee-differences

See merge request gitlab-org/gitlab-ce!25730

Merge branch '37673-minor-issue-with-apostrophe-single-quote-when-clicking-assign-to-me' into 'master'

Fix escape name in assignYourself

Closes #37673

See merge request gitlab-org/gitlab-ce!24673

Add spec for assigning user with apostrophe in name

CE backport of batch-comments-ee-store-module

See merge request gitlab-org/gitlab-ce!25681

Use factory method for import_projects store

Closes gitlab-ee#10062

See merge request gitlab-org/gitlab-ce!25646

Moves EE diferences to CE for mr_widget_pipeline

Closes gitlab-ee#10021

See merge request gitlab-org/gitlab-ce!25688

When working on files in `app/graphql` the code correctly gets
autoloaded.

However, the redefined `Types::BaseField` would never receive the
`.accepts_definition` call, causing all queries after a reload to
fail. Calling `.accepts_definition` on its superclass makes sure the
reloaded version also has the `authorize` definition specified.

Bring back Rugged implementation of find_commit

See merge request gitlab-org/gitlab-ce!25477

[CE Backport] Show commands applied message when promoting issues to epics

See merge request gitlab-org/gitlab-ce!25685

Fix 'commands applied' messages not being shown when issue is promoted to epic
using slash commands.

Allow to recursively expand includes

Closes #55937 and #56836

See merge request gitlab-org/gitlab-ce!24356

CE BE Prep backend for /billings gold trial callouts

See merge request gitlab-org/gitlab-ce!25482

Create frontend helpers for the single repo move

See merge request gitlab-org/gitlab-ce!25647

Adds EE information to gon
Creates a global vue mixin

Fix transient dirty submit spec

Closes #58154

See merge request gitlab-org/gitlab-ce!25541

Corrected Spelling Typos

See merge request gitlab-org/gitlab-ce!25717

Docs: Last batch of misc broken anchors

See merge request gitlab-org/gitlab-ce!25707

Fix UI for issuable meta info

Closes #57829

See merge request gitlab-org/gitlab-ce!25332

Minor grammar fix in docker.md documentation

See merge request gitlab-org/gitlab-ce!25640