Please build debian-edu-artwork for s390

[Petter Reinholdtsen <pere@hungry.com>]

The debian-edu-artwork is flagged as 'notforus' by the autobuilders.
I believe this is a mistake, and a result of some incorrect build
dependencies that was present in a few earlier versions.  I am not
sure who did this, nor how to find out who to contact about it, so I
try a few addresses and hope I hit someone that can change it.

Please allow debian-edu-artwork to be built for s390, as the missing
binaries are blocking the package from entering testing.

Happy hacking,
-- 
Petter Reinholdtsen