- Lowercase the first letter of \param and \returns data; in the former case,
it looks better in the table and Doxyggen (imho), in the latter it's because
it's inserted after the word "Returns" to make an english sentence on the
wiki. This is disabled in this commit, but it was useful to turn it on to
fix up the headers manually.
- Make sure everything ends with punctuation. Inserts a period if there's
no existing period or exclamation point at the end of the text. This is
enabled going forward, so we won't have to manage it ourselves.