build(demos): fix path for zone

Author: brandyscarney

scripts/demos/webpack.config.js

@@ -4,7 +4,7 @@ module.exports = {
   entry: [
     path.normalize('es6-shim/es6-shim.min'),
     'reflect-metadata',
-    path.normalize('zone.js/dist/zone-microtask'),
+    path.normalize('zone.js/dist/zone'),
   ],
   module: {
     loaders: [