Big digest changes.  New 'digest-incvol' command.
More digest work: digest-force, digest-check.
Digest support is essentially complete.
'show' bugfix.  'mkdigest list password' works.
Hourly trigger function checks digest status.
Complete redesign of the filespace thing; dotfiles instead of a database.
More qmail support.
Include overview in CALL_CHAIN.
Installed changes from SRE.