The following people contributed to the Diogenes library. Pierre Habouzit * various database access optimisations * database debugging code * improvements in readability in case of sets, enums, or `JOIN' values Jeremy Lainé * original author of the Diogenes library * flagset class * log and log browsing system * table viewer class Loïc Le Loarer * original mailer code Polytechnique.org team * various bits of code