parameters. The first allows the specification of a task name.
Non-maintenance tasks are not defined as part of availabl_tasks so we
can't get the name from the task definitions. The 2nd allows the
specification of a context when the task is completed.
task.php
* Added a owner_id field to the task database
* Modified the admin maintenace to show the owner of the task
<<**** Requires a reinstallation of core ****>>