Scripts/Icecrown Citadel: Improvements to Shadowmourne quest line
Core/Auras: Always run all script hooks attached to the aura to prevent leaving aura script state stack in unbalanced state
Remove BOM from 2 SQL files

Closes #9233
Core/Vehicles: Fix another crash

Don't set Unit::m_vehicle until VehicleJoinEvent::Execute
Merge pull request #1 from TrinityCore/master

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