toolbar now saves its state for radio buttons.

UI/Instrumentation/StringFormat.js

@@ -0,0 +1,11 @@
+"use strict";
+String.prototype.format = function () {
+    var args = arguments;
+    return this.replace(/{(\d+)}/g, function (match, number) {
+        if (typeof args[number] !== 'undefined') {
+            return args[number];
+        } else {
+            return match;
+        }
+    });
+};