Author: Paul Holden
MDL-72598 reportbuilder: tasks and API for report schedule delivery.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=335f608abb09d0a7c89574acca8bb7a00cc58280
http://github.com/moodle/moodle/commit/335f608abb09d0a7c89574acca8bb7a00cc58280
+ 4.0 en [tasksendschedules,core_reportbuilder]