Comment 3 for bug 152635

Note that the current subscription template assumes it's in a ZODB-based layout and fills a slot in layout_macro.html. This makes the subscription forms act like content, because it fills 'main', and it shows up in whatever layout is used, e.g.:
http://infrae.com/service/public/subscriptor
Also, users can always customize the subscription template by pointing it to a new template they create.

We must find a way to override only when SilvaLayout is installed. What about defining some (Five) view that's not in './public'? Such as:
http://infrae.com/object/subscriptor