[0178] Added end script to quest 524
* Added end script to quest 524 (Elixir of Agony)
  Source: http://www.wowhead.com/quest=524

Signed-off-by: cala <calaftp@free.fr>
[0179] Fixed graveyard location for Blackrock Mountain and its dungeons
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Signed-off-by: cala <calaftp@free.fr>