Add latest changes from gitlab-org/gitlab@master

app/uploaders/file_uploader.rb

app/validators/addressable_url_validator.rb

app/views/admin/application_settings/_grafana.html.haml

app/views/clusters/clusters/_form.html.haml

app/views/clusters/clusters/user/_form.html.haml

app/views/layouts/nav/sidebar/_admin.html.haml

app/views/shared/issuable/form/_branch_chooser.html.haml

...sed/208675-add-package_name-as-option-to-packages-api.yml

...eleased/georgekoltsov-27883-fix-import-pipeline-order.yml

config/initializers/8_devise.rb

config/initializers/sidekiq.rb

db/migrate/20200214085940_clean_grafana_url.rb

...schedule_recalculate_project_authorizations_second_run.rb

doc/administration/high_availability/README.md

...istration/monitoring/performance/grafana_configuration.md

...dministration/troubleshooting/gitlab_rails_cheat_sheet.md

doc/api/graphql/reference/gitlab_schema.graphql

doc/api/graphql/reference/gitlab_schema.json

doc/api/graphql/reference/index.md

doc/api/packages.md