FootnoteReference -> FootnoteRef.
Hyperlink -> Link.
Why? Because the old names got changed by Word when the
reference.docx was edited. I don't understand why, but this
fixes things.
Closes#414.
This seems to help LibreOffice convert the file, even though
it was valid docx before.
Note that the references in notes must be in
word/_rels/footnotes.xml.rel. We handle this now by simply
making that file contain all the references in
word/_rels/document.xml.rel. Something better could be done
eventually, but this works.
Closes#637.
