code: function startServer() {
    var server = require('http').createServer(app);
    var socket = socketio(server, {
      serveClient: true,
      path: '/socket.io-client'
    });
    // Setup SocketIO
    socketConfig(socket);
    return server;
  }
docs: Create an express http server and return it
  Config the socketio service to use this server
  @api private
  @return {}