Author: Dongsheng Cai
MDL-72237 core_calendar: limit number of day events on calenar view
http://git.moodle.org/gw?p=moodle.git;a=commit;h=cffefca11c8391244afa136e41ed2a2e44b5ed1b
http://github.com/moodle/moodle/commit/cffefca11c8391244afa136e41ed2a2e44b5ed1b
+ 4.0 en [moreevents,core_calendar]