Re: SQL99 doc update

> This fixes 2 inaccuracies in the recently added SQL99 feature list docs.
> UNIQUE and DISTINCT predicates are both listed as implemented -- AFAIK,
> neither is.

I'm working on adding the IS DISTINCT FROM clause. I haven't looked to
see about UNIQUE. Remind me to readjust the docs when we get that
working.

> I also included another trivial patch which adds the default location
> of the DSSSL stylesheets on my system (Debian unstable, docbook-dsssl
> 1.76) to the list of paths that configure looks for.

Great. I have had to do the same thing on my Mandrake Linux box.

                   - Thomas