Author: Mathew May
MDL-67321 core_course: Add support for tabbing activities in the chooser
http://git.moodle.org/gw?p=moodle.git;a=commit;h=c58c23d6c65dca38afdfcecd62db7c4541ad6558
http://github.com/moodle/moodle/commit/c58c23d6c65dca38afdfcecd62db7c4541ad6558
+ 3.9 en [aria:defaulttab,core_course]
+ 3.9 en [aria:favouritestab,core_course]
+ 3.9 en [aria:recommendedtab,core_course]
+ 3.9 en [recommended,core]