[Catalog-sig] start on static generation, and caching - apache config.

["Martin v. Löwis"]

> As of 7:30am PST it's timing out on the website and via XML-RPC,
> testing from L.A. or Germany.

It seems the same crash of all FCGI servers (with a failure of mod_fcgi
to restart them) has happened again. I still have no clue what's causing
it, but I added a watchdog that should restart it within a minute the
next time.

Regards,
Martin