NEW: argument defaults and validation; pluggable. This will greatly ease some of the problems with argument discovery. We need to get a few more basic plugins written for this.

Most of user.views.inc plus some bug fixes, improvements to join handling. For those interested in the real complexities, check out views_handler_filter_many_to_one to see cool stuff you can do with joins in views 2 that you could not in views 1

Add better hiliting to the UI; now possible to tell what items are overridden as well as what item is currently being edited