Print invalid storage type/hashing algorithm when failing.
Add "/logit accountcount" command.
Remove DB_CONNECT_FAIL and DB_CLOSE_FAIL messages and replace them with DB_ERROR.
Use native batching instead of statement buffering.
Translate DESC_BACKUP_RESTORE and DESC_BACKUP_REMOVE into German.
Do not unregister if last_active = 0.
Do not load accounts with empty usernames.