Defer the triggering of setDataNeeds() until after the landing page
template has been loaded, so that the interface is not an open
field during load.

Stop trying to pass data into the databox instance and always
retrigger a refresh when the collection changes.

Change the record count on the images landing page to use a rivets
rendered model driven value instead of the older style. This causes
the count to show a live value as searches progress.