Author: sam marshall
MDL-59913 Global search: Allow search of non-enrolled courses
http://git.moodle.org/gw?p=moodle.git;a=commit;h=2d94d4ea7c465960fbaa9a426fb91cd536c68b6d
http://github.com/moodle/moodle/commit/2d94d4ea7c465960fbaa9a426fb91cd536c68b6d
+ 3.4 en [searchallavailablecourses,core_admin]
+ 3.4 en [searchallavailablecourses_off,core_admin]
+ 3.4 en [searchallavailablecourses_on,core_admin]
+ 3.4 en [searchallavailablecourses_desc,core_admin]