Enable DnD upload for IE > 9

My goal was to enable DnD upload for IE10. 

I achieved that, but I had to include some hacks into the fileupload.js. 
"Unexpected call to method or property access." in IE 10 on line 215 --> dt.effectAllowed


I also added ua_parser as dependency to safely detect the browser version. 

I'm not sure if you want this in collective.quickupload, or at least not this way.
But IE > 9 supports file api and DnD api so we should make it possible for IE users to upload files like the cool guys  :smile: