Scripts/Icecrown Citadel: Add script for Deathbringer Saurfang (only missing alliance outro due to need of spawning and moving a transport)

Scripts/Icecrown Citadel: Corrected Lord Marrowgar, should no longer target tanks with Bone Spike Graveyard, his Coldflame should now spread properly
Core/Scripts: Moved Lady Deathwhisper Mana Barrier handler to scripts
Core/Scripts: Allow AuraScript to prevent default effects by effect index
Core/Scripts: Added Is25ManRaid() method to ScriptedAI, obviously used to check if raid is 25man
Core/Achievements: Pass m_caster to UpdateAchievementCriteria for ACHIEVEMENT_CRITERIA_TYPE_BE_SPELL_TARGET

--HG--
branch : trunk

src/server/game/Entities/Vehicle/Vehicle.cpp

@@ -76,6 +76,7 @@ void Vehicle::Install()
         switch (m_vehicleInfo->m_powerType)
         {
             case POWER_STEAM:
+            case POWER_BLOOD:
                 me->setPowerType(POWER_ENERGY);
                 me->SetMaxPower(POWER_ENERGY, 100);
                 break;