Load tests package as well in index.html.

root/index.html

@@ -16,7 +16,8 @@
       }});
       require([
           'amber/devel',
-          '{%= namespace %}/{%= name %}'
+          '{%= namespace %}/{%= name %}',
+          '{%= namespace %}/{%= name %}-Tests'
       ], function (smalltalk) {
           //used for all new packages in IDE
           smalltalk.initialize({