wumpus-core

Copperbox revision 1991.

I've changed the PostScript rendering to output a prolog defining procs for circles and ellipses, then to call these procs when needed in the body of the drawing.

This fixes the immediate bug, noted in the last post, but there is still a bug on drawing control points for illustrating the paths of ellipses. At least this bug is common to both SVG and PostScript output...