Update utils.js

#3 explicitly requiring bluebird

Author: albertolobrano

lib/utils.js

@@ -4,6 +4,7 @@ const debug = require('debug')('loopback:componenet:access');
 const createPromiseCallback = require('loopback-datasource-juggler/lib/utils').createPromiseCallback;
 const _defaults = require('lodash').defaults;
 const _get = require('lodash').get;
+const Promise = require("bluebird");
 
 module.exports = class AccessUtils {
   constructor(app, options) {