Fix note action buttons spacing.

# Conflicts:
#	package.json
#	spec/support/features/reportable_note_shared_examples.rb

Resolve "Deleting of a GitLab Pages project results in "`PagesWorker.perform_in` cannot be called inside a transaction""

Closes #35072

See merge request !13631

Fix project import to group when there are project milestones

Closes #35580

See merge request !13482

expose Referable#non_referable_inspect

See merge request !13613

Fix project templates and add docs

Closes #36492

See merge request !13563

Fixed collapsed sidebar not showing fly-out menu

See merge request !13622

Upgrade grape to 1.0

Closes #36588

See merge request !13609

Fix help page version image spec

Closes #36592

See merge request !13605

Fix milestone sidebar collapse button

Closes #36453

See merge request !13620

The link pointed to the wrong page, this is corrected by both writing
the documentation and linking to that instead.

(internal)
Reference: https://gitlab.slack.com/archives/C0NFPSFA8/p1502791719000238

The params were not getting a value other than `project_templates:"on"`
so the backend wasn't sure what template to use.

Fixes gitlab-org/gitlab-ce#36492

Add reserved names to docs

See merge request !13583

Main feature was the deprication of the Hashie stuff, so the access by
calling keys as method is gone now.