The expected values for the recursive merge specs were missing
"variables" at the top level.

Modify the changelog title to focus on the feature being added, not how
it's implemented (deep merging).

Recursive merging does not extend lists. Add a blurb in the ci/yaml
docs about this.

Rework the section about include in the ci/yaml docs to describe
recursive merges. Also add a note that in prior releases of GitLab, the
.gitlab-ci.yml took strict precedence over includes.

When both external files and gitlab_ci.yml define a dictionary of
variables where some variable keys overlap, later declarations should
take precedence.

When both external files and gitlab_ci.yml define a dictionary of
distinct variables, they should be merged together.

When combining GitLab CI YAML content, use deep_merge instead of merge
to combine external files and the inline content. This merges the
external files and inline content recursively, providing more options
for customizing jobs loaded from external files.

Update group menu position based on 10.x UI changes.

See merge request gitlab-org/gitlab-ee!5544

Replace the `groups_management.feature` spinach test with an rspec analog

See merge request gitlab-org/gitlab-ee!5516

Replace the `group_hooks.feature` spinach test with an rspec analog

See merge request gitlab-org/gitlab-ee!5515

Port to EE: Include documentation about STAGING_ENABLED variable for AutoDevops

See merge request gitlab-org/gitlab-ee!5536

[ci skip]

[ci skip]

Geo: Exclude expired job artifacts from syncing and counts

Closes #5357

See merge request gitlab-org/gitlab-ee!5380

CE upstream - 2018-05-02 09:27 UTC

See merge request gitlab-org/gitlab-ee!5540

EE-Port for Emoji Sprites Optimisation

See merge request gitlab-org/gitlab-ee!5538

Resolve "The `ee-specific-lines-check` should ignore files under `ee/`"

Closes #5856

See merge request gitlab-org/gitlab-ee!5549

Adding initial outline of pgbouncer documentation

Closes omnibus-gitlab#2649

See merge request gitlab-org/gitlab-ee!5351

Make ee/spec/features/admin/admin_sends_notification_spec.rb more reliable

See merge request gitlab-org/gitlab-ee!5547

Unify app/assets/javascripts/clusters/components/application_row.vue with CE

See merge request gitlab-org/gitlab-ee!5545

reliable

Merge branch '5841-geo-basesyncservice-should-prune-the-geo-temporary-directory-before-fetching' into 'master'

Resolve "Geo: BaseSyncService should prune the @geo-temporary directory before fetching"

Closes #5841

See merge request gitlab-org/gitlab-ee!5543

Skip master for EE-specific check

See merge request gitlab-org/gitlab-ee!5542

* Add link to components in HA README
* Fix typo in pgbouncer page

master is a special case that CE master is not crafted toward
EE master, thus it could be ahead of EE master. In this case
we should compare with the merge-base, but that could make
the code unnecessarily complex and is not worth the effort.

# Conflicts:
#	app/views/groups/_group_admin_settings.html.haml
#	spec/requests/api/runner_spec.rb

[ci skip]