[imp] set urgent priority patch

[Michael M Slusarz]

Quoting Kevin Lynn <klynn.imp@kevinlynn.com>:

| I saw a few people asking for this, I needed it, and I hadn't seen any
| other
| patches for it so I spent 10 minutes hacking this into the code last
| night.
| 
| This patch will allow a person to set urgent priority.
| In reality it adds these headers:
| X-Priority: 1
| X-MSMail-Priority: High

This has already been implemented in HEAD.  I didn't backport the code 
since it was not bc (it relies on the new MIME framework).

michael

______________________________________________
Michael Slusarz [slusarz@bigworm.colorado.edu]
The University of Colorado at Boulder