Change the order of Cancel and OK button in the renaming function so it matches the user experience for the same dialog boxes used in the main dashboard

IPython/html/static/notebook/js/savewidget.js

@@ -77,7 +77,6 b' define(['
             notebook: options.notebook,
             keyboard_manager: this.keyboard_manager,
             buttons : {
-                "Cancel": {},
                 "OK": {
                     class: "btn-primary",
                     click: function () {
@@ -92,7 +91,8 b' define(['
                     } else {
                         that.notebook.rename(new_name);
                     }
-                }}
+                }},
+                "Cancel": {}
                 },
             open : function (event, ui) {
                 var that = $(this);