Author: Ankit Agarwal
MDL-32341 calendar: calendar custom date range export
Adding support to export calendar events for a custom date range based on admin settings
http://git.moodle.org/gw?p=moodle.git;a=commit;h=af5d990b59a40720f4dc8197f7238eb707e61c9c
http://github.com/moodle/moodle/commit/af5d990b59a40720f4dc8197f7238eb707e61c9c
+ 2.5 en [configcalendarcustomexport,core_admin]
+ 2.5 en [configexportlookahead,core_admin]
+ 2.5 en [configexportlookback,core_admin]
+ 2.5 en [helpcalendarcustomexport,core_admin]
+ 2.5 en [helpexportlookahead,core_admin]
+ 2.5 en [helpexportlookback,core_admin]
+ 2.5 en [customexport,core_calendar]