Various fixes:

Add engineering bonuses conditions;
Implement [SOTA] Warnings system;
Fix hammer of the righteous double pct damage mods;
SOTA: Fix battleground demolisher's faction.
Ebon Gargoyle benefit from haste;
Fix - Ghoul Shouldn't benefit from DK Attack Power;
fix hp pets at dismount;
Fix - Don't Allow Vehicles in Arena;
Fix - Vehicle Immunities;
Boss General Zarithrian - changed adds spawn pos.