[Seaside] Logging out a session (and doing any necessary cleanup)..

[Rick Flower]

Hi all.. Just curious what message I need to send or whatever other 
steps are needed in order to logout a session that is subclassed from 
WASession?  In this case, I'm not referring to timed out sessions, but 
rather implicit logouts.. This would allow me to cleanup any crud that 
was session specific (database connections, etc), etc.  On a side note, 
if I've got a database connection open (in my session object) and the 
session times out over a period of time, is there a way to get some sort 
of callback to allow my application to do its necessary cleanup or is 
there some sort of magic behind the scenes that takes care of it for me 
automatically (like when the session is destroyed after the timeout is 
detected)?

Thanks!

-- Rick