A Few small bugs

[takatok]

The following lines set the chance to hit to 2,4,6% of the current chance instead of adding 2,4,6 to it.

In Zone\attack.cpp Line 347

REPLACE
chancetohit = ((chancetohit * modRangerBotAA) / 100);
WITH
chancetohit += ((chancetohit * modRangerBotAA) / 100);

In Zone\attack.cpp Line 365

REPLACE
chancetohit = ((chancetohit * modAA) / 100);
WITH
chancetohit += ((chancetohit * modAA) / 100);

The Defender's Mitigation from AGI is being deducted 2x.
In Zone\attack.cpp Line 207 and Line 384

REMOVE ONE OF THESE
chancetohit -= ((float)defender->GetAGI() * RuleR(Combat, AgiHitFactor));
chancetohit -= defender->GetAGI() * RuleR(Combat, AgiHitFactor);