message: Call cb function with error while getting tags
diff: @@ -810,6 +810,9 @@ function Facebookbot(configuration) {
  function(err, res, body) {
  if (err) {
  facebook_botkit.log('Could not get tags list');
  + if (cb) {
  + cb(err);
  + }
  } else {
  var results = null;
  @@ -817,11 +820,17 @@ function Facebookbot(configuration) {
  results = JSON.parse(body);
  } catch (err) {
  facebook_botkit.log('ERROR in page message tags call: Could not parse JSON', err, body);
  + if (cb) {
  + cb(err);
  + }
  }
  if (results) {
  if (results.error) {
  facebook_botkit.log('ERROR in page message tags: ', results.error.message);
  + if (cb) {
  + cb(esults.error);
  + }
  } else {
  facebook_botkit.debug('Successfully call page message tags', body);
  cb(results);
  