- Better error handling
- You may retroactively diagnose and fix problems
- Shows the most important issues first
audit.models.Diagnosis
- Added JSON serialization (needed for IPC)
- Replaced ambiguous vocabulary
- Provided a sorting key
audit, diagnosis
- Support title translation
- Separate alias database from system
- Block mail to system users, without backscatter
- Alias management UI for non-admin users
- Enabling/Disabling aliases (mails to /dev/null)
Misc. changes
- Daemon management
- Backup information
- Postconf diagnostics interface
- New class: `MainCfDiagnosis`
- "Advise and repair" mechanism reduces the number of postconf calls
- File locking: lock acquisition moved into audit module
- Enables finer-grained control
