Author: Rossiani Wijaya
MDL-34778 accessibility compliance for enrol: add label tag for input text
http://git.moodle.org/gw?p=moodle.git;a=commit;h=75b226b665b64fd108cd73d5fa3d569f2f94f870
http://github.com/moodle/moodle/commit/75b226b665b64fd108cd73d5fa3d569f2f94f870
+ 2.4 en [role_mapping_attribute,enrol_ldap]
+ 2.4 en [role_mapping_context,enrol_ldap]