[DynareDev] Kirikou

Hi all, Today I migrated our server "kirikou" to the latest Debian stable (codename "Lenny"). Everything went smoothly. The trickiest part was for the wikis: I had to upgrade the data for every wiki from version 1.5 to version 1.7 of Moinmoin. Please let me know if something appears to be broken. Best, Sébastien