Remember channels, improve performance, StopGain Buys

Also, I have invented a way to do the "Stop-Gain" - Buy if price is
above certain price.. Just enter the amount of BTC as negative, and the
price as the trigger price to buy. "Negative BTC" means do Stop-Gain Buy
@ target price.
Edit goxapi and stoploss
Edit goxapi and stoploss

stupid commit keeps removing anything in the dang goxtool dir