Enables frozen string in the following:

* ee/app/helpers/**/*.rb
* ee/app/mailers/**/*.rb
* ee/app/models/**/*.rb

Partially addresses gitlab-org/gitlab-ce/#47424.

CE upstream - 2018-11-30 05:21 UTC

See merge request gitlab-org/gitlab-ee!8649

Fix pod log dropdown not switching

Closes #7745

See merge request gitlab-org/gitlab-ee!8660

Fix API::Namespaces to accept namepaces with dots

See merge request gitlab-org/gitlab-ee!8627

Make Project's only_mirror_protected_branches value false by default

See merge request gitlab-org/gitlab-ee!8643

Extract shared timeline entry component (EE-port)

See merge request gitlab-org/gitlab-ee!8647

It also renames the API::PROJECT_ENDPOINT_REQUIREMENTS constant to
API::NAMESPACE_OR_PROJECT_REQUIREMENTS

Resolve conflicts for https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/8649

(cherry picked from commit e3bddb62)

Conflicts:
	app/assets/javascripts/notes/components/comment_form.vue
	app/assets/javascripts/notes/components/noteable_discussion.vue
	app/assets/javascripts/notes/components/noteable_note.vue

(cherry picked from commit 99862050)

# Conflicts:
#	app/views/projects/tree/_tree_content.html.haml
#	locale/gitlab.pot

[ci skip]

Resolve "Add packages_enabled attribute to Projects API"

Closes #8492

See merge request gitlab-org/gitlab-ee!8604

CE upstream - 2018-11-29 19:21 UTC

See merge request gitlab-org/gitlab-ee!8645

Resolve "Add border around the repository file tree"

Closes #50264

See merge request gitlab-org/gitlab-ce!23018

Resolve "Add border around the repository file tree" EE

Closes gitlab-ce#50264

See merge request gitlab-org/gitlab-ee!8534

This reverts commit 802fa98b.

Document how to create service account with admin

Closes #50005

See merge request gitlab-org/gitlab-ce!23362

Update robots.txt to exclude group_members and project_members, which can expose…

See merge request gitlab-org/gitlab-ce!23463

Update robots.txt to exclude group_members and project_members, which can expose sensitive user information to the web. Please see https://developers.google.com/search/reference/robots_txt for the correct wildcard format. 

Update Security developer workflow template

See merge request gitlab-org/gitlab-ce!23458

Resolve "Empty state for Packages screen"

Closes #7926

See merge request gitlab-org/gitlab-ee!8583

Add empty state for graphs with no values

Closes #53018

See merge request gitlab-org/gitlab-ce!22630

# Conflicts:
#	app/assets/javascripts/notes/components/note_form.vue
#	db/schema.rb
#	locale/gitlab.pot

[ci skip]

CE upstream - 2018-11-29 00:21 UTC

Closes gitlab-ce#38317, #8608, #2727, #2732, and #2742

See merge request gitlab-org/gitlab-ee!8634

Pass GITLAB_REF_SLUG to CNG triggered pipelines

See merge request gitlab-org/gitlab-ce!23435

This `default_value_for` entry didn't actually do anything because by
default, the UI initialized the flag to `false` and the DB allows `nil`
values.  However, this ensures the model is consistent with that
behavior and avoids the pitfalls we saw in
https://gitlab.com/gitlab-org/gitlab-ce/issues/53515.

This is similar to the change made in
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/23410 for
remote mirrors.

Backport of draft-design-improvements changes

See merge request gitlab-org/gitlab-ce!23438

Improve draft note header design

Closes #7920 and #7905

See merge request gitlab-org/gitlab-ee!8503

Store hashed storage paths in the database

See merge request gitlab-org/gitlab-ce!23143