Author: Mike Churchward
MDL-69863 tool_brickfield: Add 'periodically' to data message.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=7331bb14544a8845459ddc401551925edde32617
http://github.com/moodle/moodle/commit/7331bb14544a8845459ddc401551925edde32617
+ 4.0 en [sendfollowinginfo,tool_brickfield]