Author: Jun Pataleta
MDL-85795 search: Enclose the search widget in a group
http://git.moodle.org/gw?p=moodle.git;a=commit;h=c4b864606f63f440f219814a603fd5f186e1f258
http://github.com/moodle/moodle/commit/c4b864606f63f440f219814a603fd5f186e1f258
+ 4.5 en [performsearch,core_search]
+ 4.5 en [sitewidesearch,core_search]