Implementation of Restauration Shaman Mastery (Deep Healing, id=77226)
The aura corresponding to this spell is SPELL_AURA_MOD_HEALING_VS_HEALTH_TARGET_LOST (354)
The healing bonus is calculated in Unit::SpellHealingBonusDone
Mastery_pct is taken from the aura owner, Health_pct is taken from the target to compute target health lost pct. Then the healing amount is modified by mastery_pct*lost_health_pct. Hence when 0% health is lost, nothing happens and when X% health is lost, healing is increased by X% of the mastery_pct.
Changes proposed:
Issues addressed: Closes partially ticket 691 (only the restauration shaman part)
**Tests performed: Tested on my test server on every healing spell of the shaman
**Known issues and TODO list: