Update Duo-Web-v1.js to support new versions of jQuery

cowboy/jquery-postmessage#4

Author: ben-duo

demos/simple/Duo-Web-v1.bundled.min.js

@@ -6307,10 +6307,9 @@ window.jQuery = window.$ = jQuery;
     addEventListener = 'addEventListener',
 
     p_receiveMessage,
-    
-    // I couldn't get window.postMessage to actually work in Opera 9.64!
-    has_postMessage = window[postMessage] && !$.browser.opera;
-  
+
+    has_postMessage = window[postMessage];
+
   // Method: jQuery.postMessage
   // 
   // This method will call window.postMessage if available, setting the

js/Duo-Web-v1.bundled.js

@@ -62,10 +62,9 @@
     addEventListener = 'addEventListener',
 
     p_receiveMessage,
-    
-    // I couldn't get window.postMessage to actually work in Opera 9.64!
-    has_postMessage = window[postMessage] && !$.browser.opera;
-  
+
+    has_postMessage = window[postMessage];
+
   // Method: jQuery.postMessage
   // 
   // This method will call window.postMessage if available, setting the