Known contributors are listed here, in alphabetical order by their
abbreviations (which are used in Changelog).

 PS1 Peter Selinger <selinger at users.sourceforge.net> (author)
 JR1 Joshua Redstone <redstone at cs.washington.edu>

Translators:

 PS1 Peter Selinger <selinger at users.sourceforge.net> (de, fr)
 BV1 Benoît Valiron <bvali087 at uottawa.ca> (fr)
