daemonize websocket thread (kill when main exits)

ph1l · ph1l · commit 9d8328d0f17a · 2017-01-18T18:50:12.000-08:00
from https://docs.python.org/2/library/threading.html: ``` A thread can be flagged as a “daemon thread”. The significance of this flag is that the entire Python program exits when only daemon threads are left. The initial value is inherited from the creating thread. The flag can be set through the daemon property. ```
diff --git a/GDAX/WebsocketClient.py b/GDAX/WebsocketClient.py
@@ -21,6 +21,7 @@ def go():
             self.listen()
 
         self.thread = Thread(target=go)
+        self.thread.daemon = True
         self.thread.start()
 
     def connect(self):
