How do we transfer tokens from one address to another? I have added the 3 contracts to Parity and after adding the first one Parity stopped showing my BNT balance. As such, I cannot transfer it via a normal tx which should work for any ERC20 token. Do we need to use one of these contracts to send BNT from one address to another? If so, please provide some idiot-proof instructions on how to do so.