fixed bug in promisifying network package

lib/ddns/index.js

@@ -1,7 +1,7 @@
 'use strict';
 
 module.exports.create = function (deps, conf) {
-  var network = deps.PromiseA.promisify(deps.recase.camelCopy(require('network')));
+  var network = deps.PromiseA.promisifyAll(deps.recase.camelCopy(require('network')));
   var loopback = require('./loopback').create(deps, conf);
   var dnsCtrl = require('./dns-ctrl').create(deps, conf);