wicked and listen

(remembered this while reading the listen spec. it's relavent to wicked 
and listen, but  most relavent to us)

currently, wicked has trouble linking to listen content(lists, messages) 
due to the fact that they have no UID in the
Archetypes sense (in plain speak, listen content need some unique 
identifier for wicked links to work).

The recent updates to wicked use an interface to access uid, and 
therefore an adapter could be registered for listen content(that returns 
either a URI, a path, or an intid).  Steps to get there:

0. port wicked 1.0 to wicked 1.1a1 (basically a bunch of cleanup so our 
current wicked uses the new classes and registrations in the wicked lib. 
this is fairly straightforward and requires no migrations)

1. a UID adapter for each listen content type

-w