Display `squidmill` command error message (last line) if any.
Make the initial backend query async.

Require alterator-service-functions >= 2.0.2.
Do not redirect the query log for the purpose of debug.
Write the report to disk. Always return 0 to the message handler.
Fix: select unique users (TODO: add the special query to squidmill).
Fix/improve the error handling.

Check both the 'enabled' and the 'active' status values of
Require squidmill >= 2.4.
Include more log lines in the error message.
Try socket first of direct DB access.

Require alterator-service-functions >= 2.0.0-alt1.
Cleanup the spec.
Update for the new version of alterator-service-functions.

Fix error reporting.

Report squidmill errors.

Remove metalterator dependence.

Fix empty date parameter passing.

Squidmill 2.0 based release.

Missing Guile-lib-os requirement fixed.

Initial release.