don't display breadcrumb when there is only one element

extra/modules/template.py

@@ -31,6 +31,10 @@ def decorate(body, response):
 
     body = '\n'.join((section_title, page_title, body))
 
+    if hasattr(response, 'breadcrumb') and response.breadcrumb:
+        if len(response.breadcrumb) == 1:
+            response.breadcrumb = None
+
     return wcs_decorate(body, response)
 
 template.decorate = decorate