[imp] HTML composition in IE fix

[Chuck Hagenbuch]

Quoting Michael Dick <mikedick at vagabond.net.nz>:

> HTMLArea composition in internet explorer has been broken for some time.
> I've been doing some investigating and found the cause(s).
> I'll attach a couple of patches for consideration, which will work for the
> current cvs version of horde and imp.

Committed, thanks!

-chuck

--
Charles Hagenbuch, <chuck at horde.org>
"I'm really... I'm not too fascinated by green food." - Average Joe