Also, this code has changed in the master (sorry!) so that `m.get('value_sets')` should be `m.valueSets()`... except that, maybe, since there's now a `bonnie.valueSetsByOid`, maybe the thing to do (in the router) is something like

    renderValueSetsBuilder: ->
      valueSets = new Thorax.Collections.ValueSets(_(bonnie.valueSetsByOid).values())

and not have to unpack the value sets from the measures at all...