json2.js in backbone-rails-0.9.9

- old
+ new

@@ -1,8 +1,8 @@
 /*
-    http://www.JSON.org/json2.js
-    2011-10-19
+    json2.js
+    2012-10-08
 
     Public Domain.
 
     NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
 
@@ -157,11 +157,10 @@
 
 
 // Create a JSON object only if one does not already exist. We create the
 // methods in a closure to avoid creating global variables.
 
-var JSON;
-if (!JSON) {
+if (typeof JSON !== 'object') {
     JSON = {};
 }
 
 (function () {
     'use strict';