Merge branch 'ce-to-ee-2018-05-31' into 'master'

app/assets/javascripts/ide/components/external_link.vue

app/assets/javascripts/ide/components/ide_file_buttons.vue

app/assets/javascripts/ide/components/repo_editor.vue

...rge_request_widget/components/states/mr_widget_merged.vue

app/controllers/projects/merge_requests_controller.rb

app/views/peek/_bar.html.haml

changelogs/unreleased/45520-remove-links-from-web-ide.yml

...sw-fix-permitted-params-filtering-on-merge-scheduling.yml

config/initializers/console_message.rb

doc/user/snippets.md

lib/gitlab/gon_helper.rb

lib/gitlab/webpack/dev_server_middleware.rb

spec/controllers/projects/merge_requests_controller_spec.rb

spec/javascripts/ide/components/external_link_spec.js

spec/javascripts/ide/components/ide_file_buttons_spec.js

spec/workers/concerns/waitable_worker_spec.rb