Merge branch 'master' into 4009-external-users

.csscomb.json

.gitlab-ci.yml

.scss-lint.yml

CHANGELOG

CONTRIBUTING.md

Gemfile

Gemfile.lock

app/assets/javascripts/application.js.coffee

app/assets/javascripts/breakpoints.coffee

app/assets/javascripts/gl_dropdown.js.coffee

app/assets/javascripts/profile.js.coffee

app/assets/javascripts/sidebar.js.coffee

app/assets/javascripts/subscription.js.coffee

app/assets/stylesheets/application.scss

app/assets/stylesheets/framework/blocks.scss

app/assets/stylesheets/framework/header.scss

app/assets/stylesheets/framework/mixins.scss

app/assets/stylesheets/framework/sidebar.scss

app/assets/stylesheets/framework/variables.scss

app/assets/stylesheets/pages/labels.scss