Add license check before enabling extra features for LDAP

Closes #2844

See merge request !2513

CE upstream - Wednesday

Closes omnibus-gitlab#2612

See merge request !2527

Fix header levels of auto deploy quick start

See merge request !2545

Present Related Issues widget for logged-out users when publicly available

Closes #3004

See merge request !2525

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

[EE] Incorporate RefsService.FindAllBranches Gitaly RPC

See merge request !2521

information on language support for i18n

See merge request !2530

EE-Port: Add all ApplicationSettings attributes to the API

Closes gitlab-ce#34163

See merge request !2431

[EE] Skip OAuth authorization for trusted applications

See merge request !2456

Fix ordering in Gemfile.lock

See merge request !2541

The following LDAP features will be disabled without a license key:

* Syncing of users
* Syncing of all kind of groups
* Linked LDAP groups configuration
* Support for multiple LDAP servers

Merge branch '2992-add-feature-set-description-to-pcf-tile-installation-documentation' into 'master'

Add feature set description to PCF tile installation documentation

See merge request !2498

[EE] Remove superfluous tags in RSpec examples.

See merge request !2396

This is not needed for CE, because it's a 1 to 1 mapping,
but in EE it's not, so we need to make sure that we're
testing against :no_one_can_create

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

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

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

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

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

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

Add quick start guide for Auto deploy feature

See merge request !2413

Add subnav to projet audit events

Closes #2734

See merge request !2517

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

Add missing changelog for adding warning when rebuilding authorized_keys with writes disabled

See merge request !2535