[Catalog-sig] PyPI mirrors are all up to date

[ken cochrane]

> As for uptime scanning, I can add sensors for this to the PSF's existing Pingdom account and you could use their API in the same way as http://ispypiup.com/. That would give some basic site-indpendence since Pingdom has check servers all over the world (we currently require 6 sites to be in agreement before a downtime alert is issued). If this interests you, let me know :-)
>

That might be interesting, I'll need to figure out how to fit it with
the current setup, but I'm open to suggestions.

Ken