title: Mosquitto bridge with websockets
body: <p>I have been using a Mosquitto Broker for a while and I'm able to bridge two brokers by using the bridge functionally in Mosquitto. </p>
  
  <p>My question is, is it possible to bridge two brokers where I need to connect from Mosquitto to the other broker by using Websockets? 
  It seems that Mosquitto tries to connect to the other end of the bridge by using only regular MQTT TCP/IP connection and I can't find an option in the CONFIG file to allow for Websockets in the bridge configuration.</p>
  
  <p>I'm getting a "Socket Error" because the other end only supports Websockets.</p>