some ghostscript news

[Marc Espie <espie_(_at_)_schutzenberger_(_dot_)_liafa_(_dot_)_jussieu_(_dot_)_fr>]

Good news and bad news.

The good news is that I've updated ghostscript to 6.50 (to be gnu
ghostscript) and 7.00 (afpl ghostscript).

Specifically, the version in print/ghostscript/aladdin is a pre-version
of what's going to become gnu ghostscript 6.51 in a short while.

The old HP 850 drivers are now integrated in the `uniprint' driver.
The bad news is that they may be worse than they used to be.

>From 6.50 on, -sDEVICE=x11 -dTextAlphaBits=4 -dGraphicsAlphaBits=4 works.
The resulting quality is significantly better than x11alpha, but
significantly slower as well.

7.00 features a new direct gtk rendering interface. The good news is that
-sDEVICE=display -dTextAlphaBits=4 -dGraphicsAlphaBits=4 is faster than X11
without anti-aliasing. The bad news is that gv does not talk to it.
Apparently, gtk does not have any provision to do rendering on a plain 
X-window that already exists...  of course, they should only care about
gnome, should they ?