DatabaseIndependence

Make 'Tavi database independant so it can be used with nominal changes on a wide variety of databases.

The great majority of my database work is with PostgreSQL, due in part to a strong fondness for it. Thus, I'd like to see 'Tavi up and running on PostgreSQL in the not too distant future. As I looked into this, I discovered it would be almost as much work to port 'Tavi to PostgreSQL as it would to utilize the PHP4 PEAR DatabaseAbstraction class, and make 'Tavi portable to any database that it supports.

This is currently my primary development goal for WikkiTikkiTavi.