Does not validate Madagascar (MG)

[vmarquet]

http://randomiban.com/?country=Madagascar

$ irb
3.0.2 :001 > require 'iban-tools'
 => true
3.0.2 :002 > IBANTools::IBAN.new('MG3543781387163262763684827').validation_errors
 => [:unknown_country_code]

Thanks!