alana timeout responses

timeout.js

.dialog(function(session, response, stop) {
  // always send typing indicators
  response.sendTyping();
  // make an api request
  request({ uri: '', method: 'POST' ... })
    .then(function (results) {
        response.sendText(`The weather will be ${results} today`);
    })
    .timeout(5000) // timeout is in ms
    .catch(Promise.TimeoutError, function(e) {
      // if the request returns in less than 5 seconds, timeout(...) won't be callled
      response.sendText('Still working on your qustion, give me a few more seconds');
    });
})