[dev] Copy / Move to new folder patch

[Chuck Hagenbuch]

Quoting Michael Cochrane <mike@graftonhall.co.nz>:

> Here is a patch for IMP CVS HEAD to allow messages to be copied or moved
> to a new folder. It adds another option to the drop down list and has a
> javascript prompt.

Committed, thanks!

-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