Dev 0.11 (#175)

* use random IP adresses for unit tests

* Docker: The description ist missing (#171)

Fixes #167

* S allius/issue167 (#172)

* cleanup

* Sonar qube 6 (#174)

* test class ModbusConn

app/tests/test_talent.py

@@ -1150,7 +1150,7 @@ def test_msg_ota_invalid(config_tsun_inv1, msg_ota_invalid):
     m.close()
 
 def test_msg_unknown(config_tsun_inv1, msg_unknown):
-    config_tsun_inv1
+    _ = config_tsun_inv1
     m = MemoryStream(msg_unknown, (0,), False)
     m.db.stat['proxy']['Unknown_Msg'] = 0
     m.read()         # read complete msg, and dispatch msg