Exchanges will implemented in the beta, but I added the gox stuff a month ago, before it became all messy (well it already was messy, but...). I'll remove it and hard-code the value from coinmarketcap for the moment. Thanks for the notice @devthedev

EDIT: Done. If you have advices on what exchanges to integrate first, please comment in https://trello.com/c/7yTl89dY, thank you!