Core/Logs: Move runtime log to debug

because it's already checked at startup.
Core/Logs: fixing typos
Scripts/ICC: fixed situations when LK tried to cast Necrotic Plague on pets and then Necrotic Plague was omitted
DB/Creature: Hellfire Peninsula - Waypoints - 5

By Kittnz, closes #13788
Merge branch '3.3.5' of https://github.com/TrinityCore/TrinityCore into ghbb