use Gitlab::UserSettings directly as a singleton instead of including/extending it

See merge request gitlab-org/gitlab-ee!4337

CE upstream - 2018-02-02 12:59 UTC

Closes gitaly#970 and gitlab-ce#41595

See merge request gitlab-org/gitlab-ee!4360

Don't show Member Lock setting for unlicensed system

Closes #3225

See merge request gitlab-org/gitlab-ee!4355

Prevent JIRA issue identifier from being humanized

See merge request gitlab-org/gitlab-ee!4362

EE port of https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/16491

Move uploads to object storage

Closes #4163

See merge request gitlab-org/gitlab-ee!3867

# Conflicts:
#	db/schema.rb

[ci skip]

CE upstream - 2018-02-01 18:25 UTC

See merge request gitlab-org/gitlab-ee!4352

Fix Geo streaming check

Closes #4765

See merge request gitlab-org/gitlab-ee!4340

Fix an issue where sparse checkout wasn't configured correctly

See merge request gitlab-org/gitlab-ce!16864

Merge branch 'ce-to-ee-2018-02-01' of https://gitlab.com/gitlab-org/gitlab-ee into ce-to-ee-2018-02-01

Moves more mr widget components into vue files

See merge request gitlab-org/gitlab-ce!16857

Moves author components into vue files

See merge request gitlab-org/gitlab-ce!16863

Fix typo in gitlab_runner_chart.md

See merge request gitlab-org/gitlab-ce!16860

Web IDE Visual Polish 26.01

See merge request gitlab-org/gitlab-ee!4279

Finish any remaining jobs for issues.closed_at

Closes #41595

See merge request gitlab-org/gitlab-ce!16858

Improve issue note dropdown and mr button

See merge request gitlab-org/gitlab-ce!16758