Author: Paul Holden
MDL-85399 reportbuilder: allow for hourly report scheduling.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=f2078ed166d9d7339fdda761437c8b4e58ac3449
http://github.com/moodle/moodle/commit/f2078ed166d9d7339fdda761437c8b4e58ac3449
+ 5.1 en [recurrencehourly,core_reportbuilder]