[Catalog-sig] Monitoring for PyPI

["Martin v. Löwis"]

> I'm going to start with the setup right now on the assumption that
> this is a valuable service. If those with access are unwilling to be
> notified, though, please let me know so I don't waste too much time.

Feel free to have this system email me. However, I didn't have internet
connectivity for much of the afternoon, so I wouldn't have been able
to receive the email.

Regards,
Martin