[TW] Core/BattleGrounds: SOTA teleport

Removes the teleport trigger from behind the gate when the gate is
destroyed.
Now using the teleport will then move you to behind the next gate on
that side.
[TW] Core/Spells: Talent Art of War (Rank 2)

Makes it so instant cast of flash of light or exorcism doesn't reset the
swing timer.
Merge pull request #19 from gecko32/Truewow

[TW] Core/BattleGrounds: SOTA teleport & [TW] Core/Spells: Talent Art of War (Rank 2)