Author: Jun Pataleta
MDL-66143 course: Integration review fixes
http://git.moodle.org/gw?p=moodle.git;a=commit;h=b850ddfdd59b9ed0d6888916b92ddfefa68d61e5
http://github.com/moodle/moodle/commit/b850ddfdd59b9ed0d6888916b92ddfefa68d61e5
+ 3.8 en [enablecourserelativedates_desc,core_admin]
+ 3.8 en [relativedatesmode_help,core]
+ 3.8 en [relativedatesmode_warning,core]