Ripped out 'transient' code to replace it with something more robust that actually makes it all the way through to the AcknowledgmentHandler (rather than being cut short during the listening phase).
Re-adding transient detection but in the serializer where it can be more reliably matched.
TransformationHandler now forwards the incoming transient message for acknowledgement only (where possible).
JournalRing serializer will now skip items that are ACK-only.