Make sure we can support flexible traversal (as in web sites). Use traverse...

Make sure we can support flexible traversal (as in web sites). Use traverse rather than dict access.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@19796 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_xhtml_style/breadcrumbs.xml

@@ -207,7 +207,7 @@ obj = portal\n
 now = []\n
 module = True\n
 for name in relative:\n
-    obj = obj[name]\n
+    obj = obj.restrictedTraverse(name)\n
     now.append(name)\n
     if module:\n
       try:\n
@@ -297,7 +297,6 @@ return result\n
                             <string>module</string>
                             <string>_getiter_</string>
                             <string>name</string>
-                            <string>_getitem_</string>
                             <string>title</string>
                             <string>AttributeError</string>
                             <string>False</string>