Update Angular 2 Music Store sample to latest Angular 2 and other dependencies. Switch from asp-ng2-prerender-module to the more general asp-prerender-module.

samples/angular/MusicStore/typings/url-workaround.d.ts

@@ -0,0 +1,7 @@
+// This file is a workaround for angular2-universal-preview version 0.84.2 relying on the declaration of
+// Node's 'url' module. Ideally it would not declare dependencies on Node APIs except where it also supplies
+// the definitions itself.
+
+declare module 'url' {
+    export interface Url {}
+}