# File lib/phusion_passenger/abstract_installer.rb, line 424
        def download(url, output, options = {})
                options[:logger] ||= begin
                        logger = Logger.new(STDOUT)
                        logger.level = Logger::WARN
                        logger.formatter = proc { |severity, datetime, progname, msg| "*** #{msg}\n" }
                        logger
                end
                return PhusionPassenger::Utils::Download.download(url, output, options)
        end