Author: Mark Nelson
MDL-54687 core_message: added search functionality
http://git.moodle.org/gw?p=moodle.git;a=commit;h=cd03b8d7f2eaa1a9eb58e13a44d52f043967fca2
http://github.com/moodle/moodle/commit/cd03b8d7f2eaa1a9eb58e13a44d52f043967fca2
+ 3.2 en [noncontacts,core_message]
+ 3.2 en [searchforpersonorcourse,core_message]