code: function broadcast(connections, packet) {
      var i = connections.length;
      while (i--) {
          connections[i].write(packet);
          flush(connections[i]);
      }
  }
docs: Broadcast a packet to all connected clients
  
  @param  {Array}  connections Array of connections (response instances) to write to
  @param  {String} packet      The chunk of data to broadcast