subgroup section

Merge branch 'maintainers-can-create-subgroup' of https://gitlab.com/fapapa/gitlab-ce into maintainers-can-create-subgroup

# Conflicts:
#   doc/user/permissions.md

Fix link on end-to-end quick start guide doc

See merge request gitlab-org/gitlab-ce!30680

Remove auto ssl feature flags

See merge request gitlab-org/gitlab-ce!30628

* remove feature flag for admin settings
* remove feature flag for domain settings

Fix saving domain without certificate for auto_ssl

See merge request gitlab-org/gitlab-ce!30673

Open WebIDE in fork when user doesn't have access

See merge request gitlab-org/gitlab-ce!30642

ReviewApps: CI pin external-dns to 2.x version

Closes #64356

See merge request gitlab-org/gitlab-ce!30577

Backports of "Remove feature flag behind MR's multiple assignees"

See merge request gitlab-org/gitlab-ce!30261

When opening the IDE on a project where the user doesn't have push
access, we create a fork and then redirect back to the IDE. To make
sure the user can actually commit, we need to open the IDE in the forked
project rather than the upstream project.

Pin the version of deployed external-dns to `2.y.z`, using SemVer
matching. (`^2.2.1`)

Update the properties for the service account keys per
*Upgrading to 2.0.0* of the `stable/external-dns` README.

Add `aws.batchChangeSize=400` to combat messages about RDATA being
too large.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/64356

Update GitLab Pages to v1.7.0

See merge request gitlab-org/gitlab-ce!30664

Use transactions in JS feature specs

Closes #60207

See merge request gitlab-org/gitlab-ce!27496

Add cleanup migration for MR's multiple assignees

See merge request gitlab-org/gitlab-ce!30269

Set the name of a user-namespace to the user name

See merge request gitlab-org/gitlab-ce!23272

[CE] Upgrade to Rails 5.2

See merge request gitlab-org/gitlab-ce!30052

change the use of boardService in favor of boardsStore on footer for the board component

See merge request gitlab-org/gitlab-ce!30616

Prevent errors when CA has no data

See merge request gitlab-org/gitlab-ce!30556

Move the gitlab-docs project under gitlab-org

See merge request gitlab-org/gitlab-ce!30620

Port EE: Fix reply to discussion on promoted epic

See merge request gitlab-org/gitlab-ce!30411

Resolve "Follow up: Simplify sort direction logic"

Closes #60798

See merge request gitlab-org/gitlab-ce!30443

Gather memory usage data during tests

See merge request gitlab-org/gitlab-ce!30292

Log memory stats after running each spec file and compile the report.

Regenerate discussion_id for notes that are being copied over to the
epic when issue is promoted to epic.

https://gitlab.com/gitlab-org/gitlab-ee/issues/11445

Resolve "API support for group-level clusters"

Closes #55623

See merge request gitlab-org/gitlab-ce!30213

Prevent excessive sanitization of AsciiDoc ouptut

Closes #63298

See merge request gitlab-org/gitlab-ce!30290

Include AuthorizeResource module for all mutations

See merge request gitlab-org/gitlab-ce!30243

Remove trailing whitespace in docs (part 1)

See merge request gitlab-org/gitlab-ce!30648

Remove unneeded trailing whitespace in lines in
/development /ci /api and /administration docs.

Add blank lines around code blocks

See merge request gitlab-org/gitlab-ce!30651

All code blocks should be surrounded by blank lines

Remove <pre> tag and other fixes

See merge request gitlab-org/gitlab-ce!30652