Use Blob.js and FileSaver.js for providing file downloads across platforms lacking blob and HTML5 download links.

guacamole/src/main/webapp/client.xhtml

@@ -52,6 +52,9 @@
             <img src="images/progress.png"/>
         </div>
         
+        <script type="text/javascript" src="scripts/lib/blob/blob.js"></script>
+        <script type="text/javascript" src="scripts/lib/filesaver/filesaver.js"></script>
+
         <!-- guacamole-common-js scripts -->
         <script type="text/javascript" src="guacamole-common-js/keyboard.js"></script>
         <script type="text/javascript" src="guacamole-common-js/mouse.js"></script>