Author: Jason Platts
MDL-48437 Make Visible/All groups selector show own groups first
http://git.moodle.org/gw?p=moodle.git;a=commit;h=a75a381f0469098f95ef53c0d8f62b755c5c17d1
http://github.com/moodle/moodle/commit/a75a381f0469098f95ef53c0d8f62b755c5c17d1
+ 2.9 en [mygroups,core_group]
+ 2.9 en [othergroups,core_group]