moving to 0.3.0 with thought to making this part of the event log.
Issue #41 was marked as a duplicate of this issue.
@xtal & @ryanbottema any chance you guys considered this? Do you think we could automatically create a service log record for a reference change event? Is that the appropriate place to record reference update comments? Alternatively I can create a simple reference history model to track changes to reference/tolerance values. Please let me know your thoughts on this!