Armor improvements

* Armor had a random roll between 33% and 100% of its base armor value
per strike received. That roll has been eliminated, keeping armor's
damage reduction at 100% at all times. This should help armor feel more
consistent, and will raise the effectiveness of direct armor values as
compared to % resistance armor values (which have no such random
reduction).

* Added a +1 to Gort's spellpower equation so that i can actually reach
the 4th armor point at 99 spellpower that it is supposed to reach.

* All shields have been given 10% weapon resistance and a specialty.
Metal shields have 25% thrust resistance; Gold shields have 25% bludgeon
resistance; Knight's shields have 25% slash resistance; herald shields'
specialty remains the ability to give 10 spellpower (they still get 10%
weapon resistance now); orc shields have 25% pierce resistance. Soldier
shields get no new bonuses.

* All shields have been set to 20 defense and 2 armor base.

* Torches have had their durability dramatically increased, and they can
now serve as shields. Like other shields, they have 20 defense and 2
armor, and also have 10% weapon resistance, but their specialty, unlike
the other shields, is elemental: 25% cold resistance. Torches retain
their 10 spellpower bonus to Faren that I bet you didn't know they had.

* Chain armor had its slash resistance slashed. It remains the best
anti-arrow armor.

* Scale armor has been given chain armor's slash resistance. It is now
the best for melee combat against scimitars.

* Plate armor had its direct armor upped to 8, from 6. This will keep it
the best armor for sheer direct damage reduction from all sources (it
has no % resists).

* Leather armor had its defense raised to 200, and armor to 1. It is now
a strong 'dodge armor' and/or 'mage armor', since it is the only armor
with 0 sp penalty.

* Ivy Circlet lost its gratuitous shock resistance. It is now weak to
Unholy by 50%. Shals will, of course, want to cover this weakness with
Holy Resolve (up to 65% unholy resist). Resist Magic alone will only
cover 40% of that weakness. As a reminder, Orc Shields are still weak to
Holy by 20%. The disparity is due to the fact that Qors can't use Unholy
Resolve against Shals -- because it gets purged :)