CE upstream: Thursday

Closes #2246

See merge request !1749

Make the elasticsearch service use less RAM

See merge request !1747

Add global wiki search using Elasticsearch

Closes #1565

See merge request !1717

Skip irrelevant jobs for documentation only changes

See merge request !1742

Fix commit search on some elasticsearch indexes

Closes #2280

See merge request !1745

Port of 2246-uuid-is-nil-for-new-installation to EE

See merge request !1733

Fix MR approvals sentence

Closes #2272

See merge request !1730

# Conflicts:
#   db/schema.rb

Fix creating issues by email with Service Desk on

Closes gitlab-ce#31434

See merge request !1743

Port of environments-vue-5 to EE

See merge request !1722

Refactor rich blob viewers and add Source|Rendered switch

See merge request !1720

CE upstream - Wednesday

Closes gitaly#182, gitlab-ce#31276, #1440, and gitlab-ce#22740

See merge request !1725

gitter badge in the readme pointing to gitlabhq/gitlabhq

See merge request !10968

Remove invalid services with nil or empty type

See merge request !10847

Resolve "Milestone sidebar display incorect number of MR when minimized"

Closes #31292

See merge request !10933

Fix ordering of commits in the network graph.

Closes #30973

See merge request !10936

* master:
  Update ldap.md to clarify uid should list the attribute not the value

Lazily set UUID in ApplicationSetting for new installations

Closes gitlab-ee#2246

See merge request !10893