Blind & Stun

-Blind now hides enemy descriptions and greatly increases miss chances
on melee and ranged attacks.
-Stun and blind now prevent you from dodging attacks.
-Added a function for round-by-round status updates.
-Added a function to creatures to clear all combat statuses and call it
at the resolution of combat.
-Added a new "Zil Sting" status for the femzil.
-Got the femzil's combat stuff roughed out.