Author: Juan Leyva
MDL-68294 tool_mobile: Fix custom strings and limits calculation
http://git.moodle.org/gw?p=moodle.git;a=commit;h=82d5547b8f6eac0aa430abfd6024bcc47859eb18
http://github.com/moodle/moodle/commit/82d5547b8f6eac0aa430abfd6024bcc47859eb18
+ 3.9 en [notificationsmissingwarning,tool_mobile]