Significant bug fixes were provided by Cécile Ané, Jeremy Beaulieu,
James Bullard, Otto Cordero, Éric Durand, Olivier François, Rich
-FitzJohn, , Jos Käfer, Bret Larget, Naim Matasci, Nick Matzke, Michael
+FitzJohn, Jos Käfer, Bret Larget, Naim Matasci, Nick Matzke, Michael
Phelan, Elizabeth Purdom, Dan Rabosky, Filipe Vieira, Tim Wallstrom,
Li-San Wang, Yan Wong, Peter Wragg, Janet Young, and Jinlong Zhang.
Contact me if I forgot someone.