buttons.bootstrap.js in jquery-datatables-1.10.20

- old
+ new

@@ -44,10 +44,10 @@
 		button: {
 			className: 'btn btn-default'
 		},
 		collection: {
 			tag: 'ul',
-			className: 'dt-button-collection dropdown-menu',
+			className: 'dropdown-menu',
 			button: {
 				tag: 'li',
 				className: 'dt-button',
 				active: 'active',
 				disabled: 'disabled'