CE upstream - Saturday

Files to resolve:

• Lin Jen-Shin Please resolve (UU) .rubocop.yml
• Lin Jen-Shin Please resolve (UU) app/controllers/concerns/service_params.rb
• @rymai Please resolve (UU) config/application.rb
• Michael Lihs Please resolve (UU) doc/api/groups.md
• Lin Jen-Shin Please resolve (UU) lib/api/helpers.rb
• Lin Jen-Shin Please resolve (UU) lib/extracts_path.rb
• Nick Thomas Please resolve (UU) lib/gitlab/shell.rb
• Lin Jen-Shin Please resolve (UU) lib/gitlab/slash_commands/presenters/issue_base.rb
• Nick Thomas Please resolve (UU) spec/lib/gitlab/shell_spec.rb
• @smcgivern Please resolve (UU) spec/support/stub_configuration.rb

Try to resolve one file per commit, and then push (no force-push!) to the ce-to-ee-2017-12-16 branch.

Thanks in advance! ❤

Note: This merge request was created by an automated script. Please report any issue at https://gitlab.com/gitlab-org/release-tools/issues!