Maintenance for Plone 1.4.1

Maintenance for Plone provides a set of scheduled scripts for routine work in a Plone site.
PloneMaintenance consists of a portal_maintenance tool that allows you to define maintenance tasks and scripts to run according to a schedule assigned to the tasks.
No task is going to be run unless it is scheduled to. The schedule information is stored in the task, and even if PloneMaintenance is called many times in a row, it will always look up the schedule information, check when was the last time the task was run, calculate the next time the task is scheduled to run, and depending on this, PloneMaintenance will decide whether it runs the script associated to the task or not.
PloneMaintenance depends on an external tool to wake it up and make it execute the scheduled tasks. Without an external tool, PloneMaintenance will just sit and wait, doing nothing. You can go to the portal_maintenance tool and manually run the maintenance tasks, but most of the time, you want an external tool doing the job automatically.
You can choose one of the Schedulers which are available for Zope, or call PloneMaintenance from a cron job.
Enhancements:
- Fix bug on MaintenanceTask: id was not initialized
- Add "notified_emails" property. When a task has been processed, an email is sent.
- MaintenanceTask no more addable types 2006/07/06 MR