Update UnittestJS. Modifiy test template accordingly.

test/unit/templates/default.erb

@@ -8,7 +8,9 @@
     var eventResults = {};
     var originalElement = window.Element;
   </script>
-  <%= lib_files %>
+  <%= script_tag('assets/prototype.js') %>
+  <%= script_tag('lib_assets/unittest.js') %>
+  <%= link_tag('lib_assets/unittest.css') %>
   <%= css_fixtures %>
   <%= js_fixtures %>
   <%= test_file %>

vendor/unittest_js

@@ -1 +1 @@
-Subproject commit d0d28f58f127796c9cf916bd4f1c95f90b9a3fdc
+Subproject commit b81172275ea4a6530a5bac4912f2f18ecbfe9feb