o Copy all the assets from default to default_admin so that they're
totally separate
o Get rid of $item_theme
o Rename list_users.html.php to users.html.php
o use __call in admin controller to allow us to load any admin page
chainable factory interface and retrieve them by ids. Streamlined the
HTML creation code a little bit in the process, moved the basic menu
functionality into Theme_View and created the option to have different
menus other than site_navigation().
