Update Underscore/Backbone tests and make them passable.

vendor/backbone/test/view.js

@@ -5,6 +5,10 @@
   module("Backbone.View", {
 
     setup: function() {
+      $('#qunit-fixture').append(
+        '<div id="testElement"><h1>Test</h1></div>'
+      );
+
       view = new Backbone.View({
         id        : 'test-view',
         className : 'test-view',