begin implementing pubnub, no trading yet, cannot get private channel to work
Merge branch 'master' of https://github.com/prof7bit/goxtool
make pubnub working, might still have unknown problems but can trade again
revert to buy more, sell more and correct next_buy and next_sell to bid/ask +/- marker
Merge branch 'master' of https://github.com/prof7bit/goxtool