GitLab

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Conflicts:
	app/services/files/base_service.rb
	app/services/files/create_service.rb
	app/services/files/delete_service.rb
	app/services/files/update_service.rb
	doc/workflow/README.md