save audited_changes with data on destroy

[mchapman17]

I'm not sure if this is by design, but currently when I have audit(:destroy) on a model, it adds the record to the Audit table however the audited_changes field is nil. Would it be possible make it behave similar to :create? So it would have "name=>['Company Name', nil]" in the audited_changes field, similar to how it has "name=>[nil, 'Company Name']" for :create.

Thanks, Michael