pdf version of handbook

[Justin C. Sherrill]

> Would it be difficult to generate a PDF version of the
> handbook?  Thanks.
> Bob Bagwill

Here's one.  (5M)  It's a good thing you asked, as I noticed a typo in my
last commit, now fixed.

http://leaf.dragonflybsd.org/~justin/handbook/book.pdf

This is not the most up to date version - leaf has docproj-1.13 installed,
and I think the docproj-jadetex port is needed to produce a PDF.

Matt/Hiten - can one of you remove the docproj port and replace it with
docproj-jadetex?  It exists as a package on gobsd.com, so it should be
relatively quick to do.