[12559] Implement some spells used at Algalon encounter

Spell aura entries 64345, 62018 and 64412
Positive target exception for spell 64996
Aura stacking exception for spells 62169, 62168, 65250 and 64417
[mr2972] move cleanup cycle for MapPersistentSate from object update to singleton update, v0.2. must fix some old crushes. testing.