These features are now complete:

• Placename features on marked-up maps now link to a popup showing the placename information.
• Place popups now retrieve reference lists which include links to specific maps where these maps include links to the places.
• Navigating to a map with the xml:id of a place as the hash on the URI results in that place being outlined and centred, and its popup displaying.
• Licence info is displayed underneath all the maps, as well as the map gallery.
• Various minor tweaks to UI and layout.

I think this is basically ready to go now. I'll push it up to the site tomorrow morning.