KeyboardInterrupt on Windows needs 30 seconds

[Cito]

If you press Ctrl-C under Windows to shut down a running waitress server, it will be only shut down after 30 seconds. This can be somewhat irritating and annoying. The problem can be solved by passing timeout=1 to the asyncore() call in the waitress.WSGIServer.run() method. The default timeout is 30 seconds and it seems a KeyboardInterrupt is only thrown on Windows after that timeout. Setting it to a lower value of 1s should not have any negative implications. The timeout could at least be made a tunable parameter.