AddFailure
void AddFailure(const BString& property,
failures.AddFailure(key, value);
failures.AddFailure("email", "malformed");
failures.AddFailure("nickname", "required");
failures.AddFailure("nickname", "malformed");
failures.AddFailure("passwordClear", "required");
failures.AddFailure("passwordClear", "invalid");
failures.AddFailure("repeatPasswordClear", "repeat");
failures.AddFailure("agreedToUserUsageConditionsCode", "required");
failures.AddFailure("captchaResponse", "required");
validationFailures.AddFailure("captchaResponse", "captchabadresponse");
failures.AddFailure("nickname", "malformed");
failures.AddFailure("nickname", "required");
failures.AddFailure("passwordClear", "required");