<script src="{{ STATIC_URL }}/js/vendor/underscore-min.js"></script>
<script src="{{ STATIC_URL }}/js/vendor/backbone.js"></script>
+<script src="{{ STATIC_URL }}/js/xoslib/xos-defaults.js"></script>
<script src="{{ STATIC_URL }}/js/xoslib/xos-backbone.js"></script>
<script src="{{ STATIC_URL }}/js/helloworld.js"></script>