implemented includes

--HG--
branch : trunk
diff --git a/test.py b/test.py
index 549efe8..45a5e65 100644
--- a/test.py
+++ b/test.py
@@ -4,15 +4,20 @@
 env = Environment(loader=DictLoader({
 'child.html': u'''\
 {% extends master_layout or 'master.html' %}
+{% include 'helpers.html' %}
 {% macro get_the_answer() %}42{% endmacro %}
 {% block body %}
     {{ get_the_answer() }}
+    {{ conspirate() }}
 {% endblock %}
 ''',
 'master.html': u'''\
 <!doctype html>
 <title>Foo</title>
 {% block body %}{% endblock %}
+''',
+'helpers.html': u'''\
+{% macro conspirate() %}23{% endmacro %}
 '''
 }))