Author: Shamim Rezaie
MDL-69166 enrol_fee: use template for payment btn & properly format cost
http://git.moodle.org/gw?p=moodle.git;a=commit;h=9d773ee59211aa8381784303ce2c45ee696c0cd7
http://github.com/moodle/moodle/commit/9d773ee59211aa8381784303ce2c45ee696c0cd7
+ 4.0 en [localecldr,core_langconfig]
+ 4.0 en [labelvalue,core]