I've released a new version of Leonardo, the wiki/blog publishing system that is used to produce this site.
Changes:
- reorg of directory structure to more cleanly separate cgi code, modules, config and data
- no longer has to run directly under /
- support for "amazon:" tag in wiki to link to Amazon.com by ISBN
- fixed bug that prevented static file serving
- fixed bug that resulted in exception when accessing a non-existent blog year/month/day