* Added the HTTP Logout module, integer user fields, and the user prefs module to the test app.
* Changed unknownCommand to noCommand. Unknown commands now cause errors.
* Changed the arbitrary default command to some other arbitrary default command and made the login command consistent with it.
* Filled in the stylesheet a little.
* Added an error page.
* Reworked the hello page.
* Moved some stuff into the common footer.
* Added a request login page.
* Did some other minor fixups.
* Added some incomplete userPrefs pages.