[sork] change to vacation module

[Chuck Hagenbuch]

Quoting Eric Rostetter <eric.rostetter@physics.utexas.edu>:

> I'm not sure about this part.  It changes the logic a lot.  Any one else
> have any thoughts as to whether it is needed that we some how let the user
> know if they already have a vacation notice set or not, rather than just
> updating the message text if set?

Seems intuitive to me...

-chuck

--
Charles Hagenbuch, <chuck@horde.org>
"After a few minutes the most aromatic and nice smelling Italian coffee 
 will come out of the exhaustpipe." - Our stove-top espresso pot