code: function(callback) {
  
          // Inject live reload snippet
          if (options.livereload !== false) {
            if (options.livereload === true) {
              options.livereload = {port: 35729, hostname: options.hostname};
            } else if (typeof options.livereload === 'number') {
              options.livereload = {port: options.livereload, hostname: options.hostname};
            }
            middleware.unshift(injectLiveReload(options.livereload));
            callback(null);
          } else {
            callback(null);
          }
        }
docs: find a port for livereload if needed first