added changes

Author: dubesar

lib/tunnel.js

@@ -557,6 +557,12 @@ function addArguments_(self, fnCallback) {
           }
           break;
 
+        case 'loadbalanced':
+          if(value) {
+            binaryArgs.push('--load-balanced');
+          }
+          break;
+
         case 'proxyhost':
           if (value) {
             binaryArgs.push('--proxy-host');