Zlave tweaks

Tried to improve on the messages a little bit, and make the morale check a little more gradual instead of it being all-or-nothing.
Take note here, this is a bug most long actions have, they discard whatever moves the player has left, they should count those turns toward completing the task.  This is especially apparent for tasks that take very few moves when you have high skills, they can end up taking double or more the time they're supposed to.