This commit adds fields! You must run update.php! This commit also re-arranged theming slightly and may break (or at least annoy) your summary themes! -- added footer and empty view fields; re-arranged theme_summary; made theme_views_view_list_THEMENAME probably work right. (need to test).

User filters are IN! You MUST run update.php AND submit your modules page to clear the views cache after this updatecd modules/views

Summary queries may now be sorted in ways that make sense, and in ways that don't. Also, database prep for 2 new features