Author: David Woloszyn
MDL-83692 factor_sms: add notification for SMS gateway restriction
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d7d6a043887bdb28d3bf4d90eb73151432a8104f
http://github.com/moodle/moodle/commit/d7d6a043887bdb28d3bf4d90eb73151432a8104f
+ 4.5 en [settings:setupdesc,factor_sms]