log when exchange rates update, just to be sure
stop spitting out name of exchange with new data
log which exchange has new best bid/ask
reenable bestTrade
better error catching, and dont do new trades while trade in progress
dont swallow trading errors in trader, spit them back out!
kraken: console.log the whole error when it happens
justcoin hack: adjust balance BTC to consider fees. this is probably wrong, will fix later
justcoin better error handling on sent trade
make sure the timeout doesnt cancel already closed trades. FIXME: DRY