MDL-45029 core_course: set aggregationcoef while creating a new course module
MDL-46792 core_group: Add unit tests to ensure that group updates and grouping updates do not require names
MDL-46188 core_course: use correct hide/show icon
Merge branch 'MDL-46792-master' of git://github.com/xow/moodle
Merge branch 'MDL-45029-master' of git://github.com/lameze/moodle

Conflicts:
	course/modlib.php