Author: John Okely
MDL-59299 filemanager: Display what filetypes are accepted
http://git.moodle.org/gw?p=moodle.git;a=commit;h=320889c02bd2aca81b03c1db19b6905b3672d175
http://github.com/moodle/moodle/commit/320889c02bd2aca81b03c1db19b6905b3672d175
+ 3.4 en [filesofthesetypes,core_form]