* upstream/master: (114 commits)
  Fixes the blown up emoji problem in notes
  Total Pages should be at least one
  Add specs for pagination Link header
  don't add next page link if current page is out of range
  Don't escape html entities when rich == raw line
  Incorporate RepositoryService.ApplyGitattributes Gitaly RPC
  Add GitalyClient::RepositoryService specs
  use proper object notation and rename isNewRepo to isNewRepoEnabled
  Move workflow/importing/ to user/project/import/
  Prevent horizontal scrolling in new sidebar when collapsed
  Allow all users to delete their account
  Backports EE mirror stuck handling feature (https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/2628) to CE
  Use grpc 1.4.5
  Make admin user actions dropdown consistent
  Fixed height of group share dropdown
  Run remove_pages in a run_after_commit block
  Fix project import to group when there are project milestones
  Disable migrations output in migrations helpers
  Remove a wat in NamespacelessProjectDestroyWorker
  Migrate down before each migration unit test
  ...

Don't escape html entities in InlineDiffMarkdownMarker

Closes #36041

See merge request !13553

Gitaly apply gitattributes

Closes gitaly#464

See merge request !13517

Updates for proper obj notation.

See merge request !13430

API: do not set rel="next" pagination header when no records found

Closes #36618

See merge request !13629

Document how to use AWS IAM profiles for object storage

See merge request !2708

Fix external link to Composer website

Closes #36611

See merge request !13621

Make admin user actions dropdown consistent

See merge request !13630

Tuesday: CE upstream

Closes #3178, #2750, gitaly#404, and gitlab-ce#27390

See merge request !2683

Fixes the blown up emoji problem in notes

Closes #36448 and #36282

See merge request !13632

Properly explain when advanced Docker options were introduced

See merge request !13608

Docs: article - "Numerous undo possibilities in Git"

Closes gitlab-com/community-writers#40

See merge request !13513

And the link to the last page cannot be `page=0`.

Add specs that check the 'Link' header for the inclusion of:

 - rel="first"
 - rel="last"
 - rel="prev"
 - rel="next"

Fixes gitlab-org/gitlab-ce#36618

Related to gitlab-com/infrastructure#2532

[ci skip]

Merge branch 'master' into 'docs-article-undo-things-in-git'

# Conflicts:
#   doc/articles/index.md

Move workflow/importing/ to user/project/import/

See merge request !2694

Fixed issue boards focus mode not being visible to guest users

Closes #3182

See merge request !2699

Fix LDAP backwards compatibility

Closes gitlab-ce#36432 and #3082

See merge request !2690

Move workflow/importing/ to user/project/import/

See merge request !13593

Prevent horizontal scrolling in new sidebar when collapsed

Closes #36608 and #36507

See merge request !13638

Allow all users to delete their account

Closes #36087

See merge request !13636

Backports EE mirror stuck handling feature…

See merge request !13627

Use grpc 1.4.5

Closes gitaly#468

See merge request !13597

Previously the user could not delete his own account unless signup was
enabled in the global settings. This was due to the fact that deleting
the user would also delete the issues and other items associated to him.
Deleting an user does not destroy essential data anymore, for this
reason we removed the `signup_enabled?` check.

Backports EE mirror stuck handling feature (https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/2628) to CE