Fix up death a bit, it's still not perfect.

Added an additional state so that when you die we can call the die
function only once.  Also changed the void description since thats where you
go when you die, don't say "you shouldn't be here, report a bug.".
Also update heal and pray commands so you can come back to life properly.
Finally added a todo item as well, I don't think all messages are getting
through now.  Need to check them as well as combat messages...