polishing the code to a high gloss finish

Things are looking pretty good. I redid error handling. Now its consistent--you always just throw a DException when there is a user input error.

UI now focuses only on display content. It no longer handles client-side processing requests--that's been moved into Session.

Session now validates the user request.

And DirectPortal is now just Portal and has been moved into the framework package. Portal handles all the user sessions for a single client.

Things are looking very fine. Time to switch back to Swing. :D

Bill