Zurich admin nav now <li> to allow styling
Zurich: add wrapper div to admin nav to allow 'tab' border to overlap
Zurich add current page logic for tab-like behaviour on admin nav
Zurich admin nav linear gradient background
Zurich: add search box style to admin nav
Zurich: move search form from 'search' page into admin nav
Merge branch '191-zurich-admin-interface' into zurich
Zurich CSS to make admin content (and footer?) full width