Applying events from storage implemented.

NetworkRoot.js

@@ -42,6 +42,7 @@ exports.newNetworkRoot = function newNetworkRoot() {
         SA.nodeModules = {
             fs: require('fs'),
             path: require('path'),
+            util: require('util'),
             nodeFetch: require('node-fetch'),
             web3: require('web3'),
             ws: require('ws'),