#3995 Added label to textbox on move popup

notebook/static/tree/js/notebooklist.js

@@ -1047,10 +1047,10 @@ define([
         }
 
         // Open a dialog to enter the new path, with current path as default.
-        var input = $('<input/>').attr('type','text').attr('size','25').addClass('form-control')
+        var input = $('<input/>').attr('type','text').attr('size','25').attr('aria-labelledby','move-message').addClass('form-control')
             .val(utils.url_path_join('/', that.notebook_path));
         var dialog_body = $('<div/>').append(
-            $("<p/>").addClass("rename-message")
+            $("<p/>").addClass("rename-message").attr('id', 'move-message')
                 .text(i18n.msg.sprintf(i18n.msg.ngettext("Enter a new destination directory path for this item:",
                 					"Enter a new destination directory path for these %d items:", num_items),num_items))
         ).append(