*8537* More obvious Dataverse deposit consent, *8553* Allow external citation

Modify suppfile form options to offer publication options (keep in OJS, deposit in DV, or provide citation) instead of a single yes-deposit-in-DV checkbox.
*8537* More obvious Dataverse deposit consent, *8553* Allow external citation

Add external citation field to article metadata -- must exist here, to prevent
orphaned metadata, but allow authors to revise/remove citation when depositing
Dataverse files in suppfile form.
*8537* More obvious Dataverse deposit consent, *8553* Allow external citation

Add data publishing options to suppfile form. Offer submitters the option of
treating suppfiles as supplementary (not published) or as data files, published
in Dataverse.

Add external data citation field, from article metadata, to allow add/edit of
citation at point of deposit (all data publishing options available in the same
place).
*8537* More obvious Dataverse deposit consent, *8553* Allow external citation

Revised form handling for suppfile options: treat uploaded file as supplementary
or deposit in Dataverse. Offer external data citation field, stored in
article-level metadata, in data publishing options presented in suppfile.
Error deleting suppfiles in incomplete submissions that had been marked for Dataverse deposit
 *8537* More obvious Dataverse deposit consent, *8553* Allow external citation

Add form validator to suppfiles to warn when Dataverse deposit selected but no suppfile has been uploaded
*8537* More obvious Dataverse deposit consent, *8553* Allow external citation

Add form validator to suppfile form to warn when author has provided an external citation *and* has chosen to deposit files in Dataverse. A submission should choose one or the other (or neither), but not both.
*8537* More obvious Dataverse deposit consent, *8553* Allow external citation

Remove external citation field from submission metadata: keep all data publishing options in suppfile forms.
*8537* More obvious Dataverse deposit consent, *8553* Allow external citation

Add data citation, where present, to revised suppfile forms.
*8553* Allow external citation if data files already in repository

Display external citation, if present & submission does not have an associated Dataverse study, on article landing page & in submission summary table.