Modified babel to target Node 6.5

.babelrc

@@ -4,9 +4,11 @@
             "targets": {
                 "chrome": 40,
                 "firefox": 35,
-                "edge": 14
+                "edge": 14,
+                "node": "6.5",
             },
-            "modules": false
+            "modules": false,
+            "useBuiltIns": true
         }]
     ]
 }