base58: fix major it-doesn't-work bug
base58: fix major it-doesn't-work bug

favioflamingo/picocoin,01BTC10/picocoin,01BTC10/picocoin,dtebbs/picocoin,mezzovide/picocoin,01BTC10/picocoin,jl777/picocoin,favioflamingo/picocoin,dtebbs/picocoin,jl777/picocoin,dtebbs/picocoin,mezzovide/picocoin,jl777/picocoin,mezzovide/picocoin