Add port parameter to Client (#144)

Author: gkelly

duo_client/client.py

@@ -162,15 +162,16 @@ def __init__(self, ikey, skey, host,
                  timeout=socket._GLOBAL_DEFAULT_TIMEOUT,
                  paging_limit=100,
                  digestmod=hashlib.sha1,  # noqa: DUO130, HMAC-SHA1 still secure
-                 sig_version=2
+                 sig_version=2,
+                 port=None
                  ):
         """
         ca_certs - Path to CA pem file.
         """
         self.ikey = ikey
         self.skey = skey
         self.host = host
-        self.port = None
+        self.port = port
         self.sig_timezone = sig_timezone
         if ca_certs is None:
             ca_certs = DEFAULT_CA_CERTS