Make shortcuts_spec.js more order-independent

This spec was failing whenever router_spec.js was not run prior it it running.

spec/javascripts/app/views/stream/shortcuts_spec.js

@@ -1,6 +1,9 @@
 describe("app.views.StreamShortcuts", function () {
 
   beforeEach(function() {
+    // This puts `app.page` into the proper state.
+    new app.Router().stream();
+
     this.post1 = factory.post({author : factory.author({name : "Rebecca Black", id : 1492})});
     this.post2 = factory.post({author : factory.author({name : "John Stamos", id : 1987})});