The idea of using XSLT stylesheets instead of Perl hacks for man-page and
Texinfo conversion came from Mark Burton's dbtotexi.  Many thanks.

Some parts of the stylesheets were originally copied from Norman Walsh's
DocBook XSL Stylesheets.  Of course the unadulterated XSL HTML stylesheets have
been very useful also. :) The copyright notice is in COPYING.
