Fix drupal services to handle latest version of content type fields definitiosn from entity rest extra

Author: enzolutions

backbone.drupal.services.js

@@ -37,7 +37,9 @@ Backbone.Drupal.Models.Node = Backbone.Drupal.Models.Base.extend({
       if(this.backform) {
         var attributes = [];
         _.each(data, function(element, index, list) {
-          attributes[index] = element[0].value;
+          if(!_.isEmpty(element[0])) {
+            attributes[index] = element[0].value;
+          }
         });
         return attributes;
       }

bower.json

@@ -4,7 +4,7 @@
     "backbone.drupal.js",
     "backbone.drupal.services.js"
   ],
-  "version": "0.2.2-beta",
+  "version": "0.2.3-alpha",
   "homepage": "http://enzolutions.com/projects/backbone_drupal/",
   "author": {
     "name": "enzo - Eduardo Garcia",