where object_id is the id of object which is gallery attached to,
app_name is "albums" by default, image_id is image id :) and action
-is performed action (view, edit, etc).
+is performed action (view, edit, etc). It is possible to use slug
+instead of object's id (look at ``object_regex`` and ``lookup_field``
2. Create the necessary templates (see the section on templates below