Use object_id other than primary key

[sourabhv]

I am working on cleaning an old database where the revisions of data are kept in same table with different id PK but share the same uuid (not the PK). When moving old data into django reversion before deleting it from this table, it picks up id and does not map values based on uuid. Is there a way to tell reversion to use a column besides pk?

[etianen]

This isn't supported right now, but could be with an additional parameter passed to reversion.register(). I'd happily take a PR for it.