Protect not working properly

[kennumen]

It correctly sets "m_targetType = TARGET_THREATEN;" over in GetCombatTarget(), and switches targets properly, but the TARGET_THREATEN flag isn't used anywhere. I understand why it's unnecessary for tanks (because they will always have ORDERS_TANK flag active) but it really should be used/obeyed to get aggro off a healer or other protect target by casting high-aggro spells by non-tanks.

More difficult to do on classes that never tank (identify high aggro skills and put them in a special tanking/aggro section), but should be reasonably easy on the tank classes (which is 4/10).