Merge branch 'master' into rs-redactor-filter

CHANGELOG

app/controllers/ci/admin/runners_controller.rb

app/controllers/projects/issues_controller.rb

app/controllers/projects/merge_requests_controller.rb

app/controllers/projects/runners_controller.rb

app/helpers/runners_helper.rb

app/models/ci/build.rb

app/models/ci/project.rb

app/models/ci/runner.rb

app/models/commit_status.rb

app/models/concerns/mentionable.rb

app/models/concerns/participable.rb

app/models/note.rb

app/services/ci/register_build_service.rb

app/services/git_push_service.rb

app/services/issues/create_service.rb

app/services/issues/update_service.rb

app/services/merge_requests/create_service.rb

app/services/merge_requests/update_service.rb

app/services/notes/create_service.rb