Create layer to integrate with Jira development panel (presenting commits)

Closes #2381

See merge request !2786

EE port of fly-out-top-level-item

See merge request !2856

EE port of breadcrumbs-extra-btns-remove

See merge request !2857

Resolve "Promote Advanced Global Search"

Closes #2978

See merge request !2822

Resolve "Promote Issue weight"

Closes #2946

See merge request !2800

[EE] Update capybara 2.6.2 -> 2.15.1

See merge request !2849

Resolve "Promote issue board"

Closes #2899

See merge request !2579

Geo - Log a repository created event when a project is created

See merge request !2807

Show geo.log in the Admin area

See merge request !2845

reset namespace columns in migration

Closes https://gitlab.com/gitlab-org/gitlab-ee/issues/3356

See merge request !2847

Don't put the password in the SSH remote if using public-key authentication

Closes #3352

See merge request !2837

Port changes of gitlab-org/gitlab-ce!13902 to EE

See merge request !2848

Ee collapsable pipeline settings

See merge request !2844

Add missing indexes to geo_event_log table

See merge request !2836

Changelog: https://git.io/v5403

Clean up projects API docs

See merge request !2846

Previously, we'd include possibly-stale passwords in the remote we'd use for
pull mirroring.

Closes #3352

EE port of breadcrumbs-improvements

See merge request !2832

Adds a tab button on the Admin Logs page (at /admin/logs), to display
geo.log, just like the tab buttons for application.log and others.

See !2845

Make it easier to override the set of loggers, by putting them in a
separate method.

Also modify spec so it tests for links, instead of checking for
regular text.