code: function addUpdated(results) {
    results.forEach(function(result) {
      result = normalizeResult(result);
      if (!lastQuery.results.hits) {
        lastQuery = { results: { hits: { total : 0, hits: [] } } };
      } else {
        var i = 0, l = lastQuery.results.hits.hits.length;
        for (i; i < l; i++) {
          if (lastQuery.results.hits.hits[i]._source.uri === result._source.uri) {
            lastQuery.results.hits.hits.splice(i, 1);
            break;
          }
        }
      }
      lastQuery.results.hits.hits.unshift(result);
    });
    updateResults(lastQuery);
  }
docs: add updated items