Update to release v4.1.1

Author: kartik-v

examples/index.html

@@ -81,7 +81,7 @@ <h1>Bootstrap File Input Example</h1>
 	});
 	$("#file-4").fileinput({
 		uploadExtraData: [
-            {id: 'kar1', value: '10'}
+            {kvId: '10'}
         ],
 	});
     $(".btn-warning").on('click', function() {