These commands work like natbib's citeauthor and citeyear commands,
and facilities making possessive citations. For example:
> Thanks to @(cite-author foo)'s (@(cite-year foo)) paper on stuff...
These identifiers are added with `define-cite` as keywords, and thus
can be omitted with no downside for backwards compatibility.
@(define-cite cite citet generate-bib
#:cite-author cite-author
#:cite-year cite-year)
Also in this commit:
* Add documentation.
* Add tests for autobib
* Bump version and add history.
a8dec74ffa