Bug#613912: ghostscript ships its own fonts in libgs9-common, additionally depends on gsfonts

[fabian@greffrath.com]

> I disagree with that approach: I consider it a Best Practice(tm) to
> favor true source over indirection like redistribution bia Ghostscript.

Jonas, AFAICT URW++ made these fonts available by handing them over to the
ghostscript project, i.e. there has never been a "true source" tarball
released by URW++ itself (at least this is how I understand it).
Ghostscript made these fonts available e.g. here
http://mirror.cs.wisc.edu/pub/mirrors/ghost/fonts/
before they modified them and integrated them into their own release
tarballs.

 - Fabian