Scripts/Naxxramas:

* Implement dialogue after Sapphiron dies.
* Spawn missing triggers at Kel'Thuzad's room.
* Implement a couple of missing texts and emotes to Kel'Thuzad's fight.
Scripts/HallsOfLightning: Readd a safe-measure line to remove Loken's aura
Merge branch '3.3.5' of https://github.com/TrinityCore/TrinityCore into ghbb
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