ability for fetchCurrencies like in original
ability for fetchCurrencies like in original

I don't know, was this intentionally left or just left out of attention? 
I don't have access to B-US atm, but everything seems same (fetchCurrencies just needs auth like in original B-COM).
ccxt/ccxt,ccxt/ccxt,ccxt/ccxt,ccxt/ccxt,ccxt/ccxt