[imp] allowing all messages located in ['drafts_folder'] to be resumed

[Chuck Hagenbuch]

Quoting Liam Hoekenga <liamr@umich.edu>:

> I wanted my users to be able to resume all messages stored in their 
> designated drafts folder, because some imap clients (er.. um.. pine)
> doesn't mark it's postponed messages w/ the Draft flag. 

Makes sense. Committed, thanks!

-chuck

--
Charles Hagenbuch, <chuck@horde.org>
"A dream which helps you to live your reality with dignity
 and justice is a good dream." - Tariq Ramadan