Author: Alex Morris
MDL-76722 message_airnotifier: Add encrypted notifications
http://git.moodle.org/gw?p=moodle.git;a=commit;h=38160a6f94f875c308b7572d0defd7a44d38e62b
http://github.com/moodle/moodle/commit/38160a6f94f875c308b7572d0defd7a44d38e62b
+ 4.2 en [encryptnotifications,message_airnotifier]
+ 4.2 en [encryptnotifications_help,message_airnotifier]
+ 4.2 en [view_notification,message_airnotifier]