🚀 go-pugleaf

It's back, and it's better. There were several of you who sent me mail
asking for the last refraction update (about 80 or so), so I figured
that this would be worth doing right.

I just posted tracer version 2.0 net net.sources, and it is a definite
improvement over version 1.0. It isn't very compatible with version one
either, which is why I chose to repost the whole shebang. 

None of the problems that were around in the old one should be in the
new one (I hope), and the code should run a little faster except for the
refraction routines which are doubly recursive and very long.
(with lots of sqrts and other nasty stuff).

It is still meant to be a hackers toy, so feel free to go in and chew it
up. If there are any people you know of that want it but aren't on the
net please feel free to pass it on.

As usual, post good comments to net graphics, and send all suggestions,
comments and requests to (fritzz@net1 || ...sdcsvax!net1!fritzz)

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