SV list uses drupal display modes #2033

The display style does not adjsut based on what's available any more - it's stuck at teaser/sidebar/full.  This means you can select sidebar teaser for items that don't really have a sidebar teaser

Custom display styules will need to be reimplemented as view modes.

An update hook will be needed.  dipslay_body is now just body.

Do we want to worry about the order these modes appear in?