Author: Ryan Wyllie
MDL-59382 calendar: add modal to create and update events
http://git.moodle.org/gw?p=moodle.git;a=commit;h=aa0912258d58506099f67affb18575c12bee5127
http://github.com/moodle/moodle/commit/aa0912258d58506099f67affb18575c12bee5127
+ 3.4 en [less,core_calendar]
+ 3.4 en [more,core_calendar]
+ 3.4 en [save,core]