Author: Mark Nelson
MDL-59106 report_insights: show time created and time range used
http://git.moodle.org/gw?p=moodle.git;a=commit;h=c614073940925880dd7d6c843dee7018d93215f7
http://github.com/moodle/moodle/commit/c614073940925880dd7d6c843dee7018d93215f7
+ 3.4 en [timecreated,report_insights]
+ 3.4 en [timerange,report_insights]
+ 3.4 en [timerangewithdata,report_insights]