expose the AmbidextrousList scrollBarOnLeft property

git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@484 ed5b42cb-e716-0410-a449-f6a68f950b19

src/as/com/threerings/flex/PlayerList.as

@@ -67,6 +67,16 @@ public class PlayerList extends VBox
         _players.sort = sort;
     }
 
+    public function get scrollBarOnLeft () :Boolean
+    {
+        return _list.scrollBarOnLeft;
+    }
+
+    public function set scrollBarOnLeft (onLeft :Boolean) :void
+    {
+        _list.scrollBarOnLeft = onLeft;
+    }
+
     public function clear () :void
     {
         _values.clear();