[mt959] Additional safety
[mt960] Deadly Precision proc
[mt961] Deathbringer's Will cooldown upgrade
[mt962] Arcane Potency fix
[mt963] Remove duplicate check in Echo of Light
[mt964] Fix SendStablePet packet format
[mt965] ITEM_EXTRA_CREATE_ITEM_ON_EXPIRE
[mt966] Implement PrioritizedLootItemQueque