Significant bug fixes were provided by Cécile Ané, James Bullard,
Éric Durand, Olivier François, Rich FitzJohn, Bret Larget, Nick Matzke,
-Elizabeth Purdom, Dan Rabosky, Klaus Schliep, Tim Wallstrom, Li-San
-Wang, Yan Wong, and Peter Wragg. Contact me if I forgot someone.
+Michael Phelan, Elizabeth Purdom, Dan Rabosky, Klaus Schliep, Tim
+Wallstrom, Li-San Wang, Yan Wong, Peter Wragg, and Janet Young. Contact
+me if I forgot someone.
Kurt Hornik, of the R Core Team, helped in several occasions to
fix some problems and bugs.