1. cleaned up the mess in our directories... all client files are now under: /www/mail, and all server-side files are under /mail/
 2. split runMail into separate modules (for cleaner code)
 3. improved design of login / register pages
 4. added AJAX for error checking
 5. changed sendStaticRequest to use the 303 response code (redirect)... not using it right now.
 6. The redirection is now on client-side responsibility, upon receiving "OK" from the server-side AJAX.