🚀 go-pugleaf

Thanks to responses from this newsgroup, I recently modified old troff to 
have a longer line length, and to use PostScript Times Roman width tables.
While I'm at it, I thought a few other changes might be nice.  Has anybody
ever done the following:

1.  Expanded the number of fonts from 4 to 6, let's say.  It would be great
	to have Courier and Courier Bold available.

2.  Fixed the various ligature bugs.  Most of these haven't even been fixed
	in the newest ditroff, by the way.  Getta loada these:

	% troff -a
	.nr f 1
	xx\nfyy
	.fl
	xxy1y

	% troff -man
	.TP
	.BI \-f fontname
	.TP
	\fB\-f\fIfontname\fP

	The above produces an ff ligature in bold instead of an f in bold
	then an f in italics.  The bug apparently results from .TP's use
	of the rare .it request.

Thanks in advance,
Bill Tuthill