More melee message variety and proper stab messages.

Cutting from low damage to high:
`Nick
Cut
Slice
Slash, Maim or Chop`

At higher levels, high-end damage can get boring with the same message all the time. So the last one denotes a dice roll for one of the three. 

Cutting weapons with stab flag:
`Nick
Cut
Stab
Gut, Slash, or Mutilate`

Piercing weapons:
`Poke
Pierce
Puncture
Impale, Gouge, Run through`

Bashin weapons:
`Hit
Whack
Batter
Clobber, or Smash, or Thrash`