Changed 'The Gaping Maw' icon to match item description

Dawn's Blade glow fixed
Blood-edge bad pixels fixed

Bugfix talented ai tactic

fixes a problem with the talented_ai_tactic resolver with glowing chests.

Merge branch 'better-dammod' of http://git.net-core.org/grayswandir/t-engine4 into grayswandir/t-engine4-better-dammod

Conflicts:
	game/modules/tome/class/interface/Combat.lua

More masteries

Allows more flexible weapon masteries.

Training Talents can have the following fields:
- getMasteryPriority(self, t, kind) - Only the talent with the highest is used. Defaults to the talent level.
- getDamage(self, t, kind) - Extra physical power granted. Defaults to level * 10.
- getPercentInc(self, t, kind) - Percentage increase to damage overall. Defaults to sqrt(level / 5) / 2.

As a side effect, stuff like lethality now shows up in weapon tooltips.

Training Talents can have the following fields:
- getMasteryPriority(self, t, kind) - Only the talent with the highest is used. Defaults to the talent level.
- getDamage(self, t, kind) - Extra physical power granted. Defaults to level * 10.
- getPercentInc(self, t, kind) - Percentage increase to damage overall. Defaults to sqrt(level / 5) / 2.

Should be compatible with all existing masteries.

Talent listing

Also added different sorting methods

Spellcraft fix

Makes spellcraft:
Only work on spells.
Actually use the spellpower bonus it says it does.

Allow negative powers

Allows negative combat_spellpower and family to bring you below your basic stat level for powers.
Needed because currently EFF_INTIMIDATED does nothing the majority of the time, since most enemies don't have anything boosting powers above the stat level.

Add shield speed

Adds a 'shield' speed type, so 'quick' weapons will no longer make shield pummel faster.
Also makes room for a possible quick-acting shield ego/artifact.

Speed fix for edge

Edge was having trouble merging some PM talents in.