TrinityCore/TrinityCore — pull request #8318 by blipi (2012-11-16 04:29:49+00:00)
Title: Core/Battlefield: Fix crashes due to invalid pointers use

Related to: https://github.com/TrinityCore/TrinityCore/issues/7805

Move all pointer (GameObject*) to GUIDs in both Battlefield system and Wintergrasp zone.
Should be deeply tested before merging as I can't verify it to complete solve the problem.