[Twisted-Python] twisted threading server has to be stopped with KILL

[snacktime]

> 
>  Thanks.  What platform are you running this on?  On Debian (Linux 2.6.9, libc 2.3.2), the server exits as expected when I send it a SIGINT or SIGTERM.
> 
>  Jp

Freebsd 5.3 release-p2.   If it works on debian I suspect it's either
a freebsd problem or less likely a python problem.  Freebsd still has
some issues with threads as far as I know.

Chris