made ab.score mods less dumb, passing turns

made the getting ability score modifiers from actors less dumb, applying
DRY (i.e. stop copy pasting the same code over and over jeez). Still a
bit dumb, but we'll get to that. standardized passing turns, so it's no
longer manually setting the cooldown (boy is that prone to fuckups).
also added kp5 to skip a turn in standard fashion.