DB/Creature: Vacillating Voidcaller

Script http://www.wowhead.com/npc=19527
DB/Misc: Various Updates

1) Nerub'Ar Victim by DDuarte closes #13621
2) Search for Incendicite by Exodius closes #13309
3) Feeding Arngrim closes #12826
4 ) CPP > DB Conversions (What's Haunting Witch Hill and of Keys and Cages closes #12645
Yes of Keys and Cages again, the previous commit was not most recent version of script
Merge remote-tracking branch 'upstream/3.3.5' into 3.3.5

* upstream/3.3.5:
  DB/Misc: Various Updates
  DB/Creature: Vacillating Voidcaller
  DB/Creature: Harbinger of the Raven
  DB/Achievement: Pilgrim's Peril
  DB/Quest: We Strike!
Merge branch '3.3.5' of https://github.com/britus/TrinityCore.EoF.Fixes into 3.3.5

* '3.3.5' of https://github.com/britus/TrinityCore.EoF.Fixes: