Author: Mike Churchward
MDL-69863 tool_brickfield: Add 'periodically' to data message.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=a65647f3f32f542ed34cf8f28a4dd49d9274a125
http://github.com/moodle/moodle/commit/a65647f3f32f542ed34cf8f28a4dd49d9274a125
+ 3.11 en [sendfollowinginfo,tool_brickfield]