Author: Shamim Rezaie
MDL-69166 enrol_fee: Show a warning when no currency is supported
http://git.moodle.org/gw?p=moodle.git;a=commit;h=3c87455f4bd6870b4bf30371eba55952f99e3418
http://github.com/moodle/moodle/commit/3c87455f4bd6870b4bf30371eba55952f99e3418
+ 4.0 en [nocurrencysupported,payment]