Merge remote-tracking branch 'origin/master' into ci-lfs-fetch

.github/ISSUE_TEMPLATE.md

.github/PULL_REQUEST_TEMPLATE.md

.gitlab-ci.yml

.rubocop.yml

.vagrant_enabled

CHANGELOG

CONTRIBUTING.md

GITLAB_WORKHORSE_VERSION

Gemfile

Gemfile.lock

Rakefile

app/assets/javascripts/LabelManager.js.coffee

app/assets/javascripts/activities.js.coffee

app/assets/javascripts/application.js.coffee

app/assets/javascripts/awards_handler.coffee

app/assets/javascripts/ci/build.coffee

app/assets/javascripts/dispatcher.js.coffee

app/assets/javascripts/due_date_select.js.coffee

app/assets/javascripts/flash.js.coffee

app/assets/javascripts/gfm_auto_complete.js.coffee