Update mirror address (m{0,1}.theslinux.org)

Berlios.de supports VirtualHost; we can use m1.theslinux.org instead
of the weird name http://theslinux.berlios.de/. Tuxfamily, however,
requires us to use their DNS resolver. That is not possible ;)

So now we have different mirrors of our homepage
* m0 (l00s3r)
* m1 (berlios)
* m3 (l00s5r, not build yet)

Too many things, right? We may need to use some free CDN ^^