I've gone through our limb damage code and rewritten them to be less of
a mystery for us and you alike. As such, there's been some message
changes.

- Rewrote parry handling and parry verbs.
- Trimmed down the mutilated (lvl 2 break) line slightly.
- Trimmed down the glasslimb proc message.
- Trimmed down the amputated bleeding proc message.
- Head and torso damage now use the same message as other breaks.
- You can do more then 33% limb damage in one blow now.
- Wrench with all four limbs broken now deals all its head
trauma at once.
- Mangle and Destroy for Shapeshifters has been rewritten.
- Shatter now deals 200% more damage instead of 500%.
* It will still break a limb though regardless.

Everything else should be relatively the same. Please file a BUG if you
notice anything odd.

Penned by my hand on an unknown date.