Merge pull request #42 from jiahut/master

[fix] type mistake

Author: whtsky

werobot/robot.py

@@ -253,5 +253,5 @@ def run(self, server=None, host=None,
         if host is None:
             host = self.config["HOST"]
         if port is None:
-            port = self.config["POST"]
+            port = self.config["PORT"]
         self.wsgi.run(server=server, host=host, port=port)