doesnt handle end dates or node references

There is a bug in this module that ignores end dates in certain situations. Also, if one of the vcal fields sources is a node reference no value gets populated in the resulting ical file. I didnt have time to create a patch but the following code resolves these two issues. It's the "default" case in the vcalfield_file() function.

      default:
        if ($key){
          $fd = $node->$key;
          if ($field == 'end'){
            if ($fields['end'] == $fields['start']){
              $rfields[$field] = $fd['0']['value2'];
            } else {
              $rfields[$field] = $fd['0']['value'];
            }
          } else {
            if ($fd['0']['nid']) {
              $temp_node = node_load(array('nid' => $fd['0']['nid']));
              $rfields[$field] = $temp_node->title;
            } else {
              $rfields[$field] = $fd['0']['value'];
            } 
          }
        }
        break;