[implemented] Return Previous Keep Owner when Ownership Changes

[Enodoc]

Hey there, this is a request for an addition to the event EVENT_KEEP_ALLIANCE_OWNER_CHANGED. Would it be possible to add the previous owner of the keep to the returns from this event?

That is, instead of

EVENT_KEEP_ALLIANCE_OWNER_CHANGED(eventCode, keepId, battlegroundContext, owningAlliance)

it would be good to have

EVENT_KEEP_ALLIANCE_OWNER_CHANGED(eventCode, keepId, battlegroundContext, owningAlliance, oldOwner)

That way, we could see at a glance which alliance is losing a keep, as well as which alliance is gaining one.

Thanks!