Merge branch 'refactor_simulate_drag' into 'master'

.gitlab-ci.yml

Gemfile

Gemfile.lock

app/assets/javascripts/main.js

app/assets/javascripts/test_utils/index.js

app/assets/javascripts/test_utils/simulate_drag.js

app/views/groups/milestones/show.html.haml

app/views/projects/boards/_show.html.haml

app/views/projects/labels/index.html.haml

app/views/projects/milestones/show.html.haml

config/webpack.config.js

spec/features/milestones/milestones_spec.rb

spec/support/drag_to_helper.rb