feat(router): upgrade the router version (#1288)

Author: Brocco

addon/ng2/blueprints/ng2/files/package.json

@@ -20,7 +20,7 @@
     "@angular/http": "2.0.0-rc.3",
     "@angular/platform-browser": "2.0.0-rc.3",
     "@angular/platform-browser-dynamic": "2.0.0-rc.3",
-    "@angular/router": "3.0.0-alpha.8",
+    "@angular/router": "3.0.0-beta.2",
     "es6-shim": "0.35.1",
     "reflect-metadata": "0.1.3",
     "rxjs": "5.0.0-beta.6",