Default +universal variant for configure-based ports

[Elias Pipping]

> That said, I don't think it *should* list universal
> unless the port is actually known to work with it.
> Any proposed solutions?

I'm currently working on a list of ports that really
do work with +universal (in case anyone wondered why i
started adding test suits). For those that don't mind
the layout: Here's a tiny, provisional list:

http://page.mi.fu-berlin.de/~pipping/macports/universal

Regards,

Elias Pipping