Author: Eric Merrill
MDL-53508 search: Improve highlighting and move to text fields
http://git.moodle.org/gw?p=moodle.git;a=commit;h=4894840dc6cb06d9d6d73d719250e0d55e4ebc9c
http://github.com/moodle/moodle/commit/4894840dc6cb06d9d6d73d719250e0d55e4ebc9c
+ 3.1 en [notitle,core_search]