Author: Josh Willcock
MDL-50287 completion: Separated slow task out from cron
The mark started function for the completions scheduled task can be very
slow and causes performance issues when running. By splitting this into
it's own task it can be managed independantly from the other parts which
update regularly.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=51e488eaf31307319e34c8b56a85c019016c7871
http://github.com/moodle/moodle/commit/51e488eaf31307319e34c8b56a85c019016c7871
+ 3.0 en [taskcompletioncronregular,core_admin]
+ 3.0 en [taskcompletioncrondaily,core_admin]