Fix#131:
- Raise a syntax error when bogus mode arguments are given.
- Fix a bug where `extend-final` and `augment-final` are not recognized
- Document the `public` mode which was already supported but not
documented.
- Clarify the default mode when `maybe-mode` is not given.
Add an optional argument to bib-entry to typeset a comment directly
after a citation --- with no punctuation between the end of the citation
and start of the comment.
Example: making an annotated bibliography, with an element that appears just
below each citation
In places where module names are typeset, such as `racketmodname`,
there's no way to disable the special treatment of `_` as an
identifier prefix as in `racket`. Even using
`make-element-id-transformer` doesn't work, because the module-name
datum is explcitly disconnected from binding withing `racketmodname`.
This heuristic could go slightly wrong, for example causing "10.000"
to render as "#i10.0" instead of "10.0", but it won't affect cases
where the output already matched the input.
