And listing QNX 6 as both supported and unsupported is probably not helpful.

Fix up references to "PostgreSQL" rather than "Postgres". Was roughly
 evenly split between the two before. ref/ files not yet done.

 of Norm's Modular Style Sheets and jade/docbook.
From Vince Vielhaber <vev@michvhf.com>.

 to be meaningful.

Add more URL links for GiST information.