removed leftover argument in bitcoupon
removed leftover argument in bitcoupon

Habitats/bitcoupon,bitcoupon/bitcoupon-on-rails,bitcoupon/bitcoupon-bitcoin-library,Habitats/bitcoupon,bitcoupon/bitcoupon-on-rails,bitcoupon/bitcoupon-android-client,Habitats/bitcoupon,bitcoupon/bitcoupon-bitcoin-library,bitcoupon/bitcoupon-on-rails,Habitats/bitcoupon,bitcoupon/bitcoupon-on-rails