API GetSpellBonusDamage

__NOTOC__
Returns the raw spell damage bonus for the specified spell tree.
 spellDmg = GetSpellBonusDamage(spellTreeID)
==Parameters==
===Arguments===
:;spellTreeID: - the spell tree:
::* 1 for Physical
::* 2 for Holy
::* 3 for Fire
::* 4 for Nature
::* 5 for Frost
::* 6 for Shadow
::* 7 for Arcane
===Returns===
:;spellDmg: - The raw spell damage bonus of the player for that spell tree