[FIX] parse_number should create a non-native currency
[FIX] parse_number should create a non-native currency

"1" just means "some issuer, don't care which"

darkdarkdragon/ripple-lib,ripple/ripple-lib,ripple/ripple-lib,ripple/ripple-lib,wilsonianb/ripple-lib,ripple/ripple-lib,wilsonianb/ripple-lib,wilsonianb/ripple-lib,darkdarkdragon/ripple-lib,darkdarkdragon/ripple-lib