*8859* Improve article copyright/license affixing

PR for testing and comment; Do not merge.
I think tying default rights attachment directly to the insert function mixes model concerns with controller concerns more than necessary. Plus as you've seen the author list isn't available on the point of insert. I'd rather see a call to explicitly affix rights information coming from the controller -- e.g. at the end of the submission process, when the author submits the last workflow form.