Fix Bitstamp BTC buy units, and add BCH asset (#1477)
Fix Bitstamp BTC buy units, and add BCH asset (#1477)

* Fix Bitstamp BTC buy units and add BCH asset

askmike/gekko,BarnumD/gekko,BarnumD/gekko,askmike/gekko,askmike/gekko,BarnumD/gekko