Autocomplete doesn't allow to alter text suggestions

There is currently a hook which allows to alter results in term of node selection, but not about the label itself.
The text provided is simply the "$node->title" which in many cases is not enought.

Sometime there is a second title, caracteristics added using fields, or eventualy the need to display the content type used.

That's why a 'drupal_alter' just before the 'return' instruction should be very helpfull.

  $context = array(
    'queue' => $queue,
    'subqueue' => $subqueue,
    'string' => $string,
    'result' => $result,
  );
  drupal_alter('nodequeue_api_autocomplete', $matches, $context);