add binance gateway

vnpy/trader/gateway/binanceGateway/BINANCE_connect.json

@@ -0,0 +1,6 @@
+{
+	"accountID": "---",
+    "accessKey": "----",
+    "secretKey": "---",
+    "interval": 6
+}

vnpy/trader/gateway/binanceGateway/DigitalCurrency.py

@@ -0,0 +1,24 @@
+# encoding: utf-8
+
+'''
+	ethusdt --> eth_usdt
+	etcbtc  --> etc_btc
+	ethusdt.HUOBI --> eth_usdt
+	etcbtc.HUOBI  --> etc_btc
+'''
+def systemSymbolToVnSymbol(symbol):
+	symbol = symbol.replace('_','')
+	symbol = ((symbol.split('.'))[0]).lower()
+	if 'usdt' in symbol:
+		return symbol[:-4] + "_usdt"
+	else:
+		return symbol[:-3] + "_" + symbol[-3:]
+
+
+'''
+	etc_btc  --> etcbtc
+	eth_usdt --> ethusdt
+'''
+def VnSymbolToSystemSymbol(symbol):
+	symbol = (symbol.split('.'))[0]
+	return (''.join(symbol.split('_'))).lower()

vnpy/trader/gateway/binanceGateway/__init__.py

@@ -0,0 +1,11 @@
+# encoding: UTF-8
+
+from vnpy.trader import vtConstant
+from vnpy.trader.gateway.binanceGateway.binanceGateway import BinanceGateway
+
+gatewayClass = BinanceGateway
+gatewayName = 'BINANCE'
+gatewayDisplayName = u'BINANCE'
+gatewayType = vtConstant.GATEWAYTYPE_BTC
+gatewayQryEnabled = True
+