const btcE = new BtceService({publicKey: 'PUBLIC' secretKey: 'SECRET'})
Public API (https://btc-e.com/api/3/docs)
btcE.depth(pair)
btcE.fee(pair)
btcE.info()
btcE.ticker(pair)
btcE.trades(pair)
Trade API (https://btc-e.com/tapi/docs)
btcE.activeOrders(pair)
btcE.cancelOrder(order_id)
btcE.getInfo()
btcE.orderInfo(order_id)
btcE.trade({ pair, type, rate, amount })
btcE.tradeHistory({ from, count, from_id, end_id, order, since, end, pair })
btcE.transHistory({ from, count, from_id, end_id, order, since, end })