fix/converse_intents_no_match (#193)

"conf" key is not available when padacioso doesn't return any match

{'name': None, 'entities': {}}

ovos_workshop/skills/ovos.py

@@ -271,7 +271,7 @@ def _handle_converse_intents(self, message):
 
         for utt in message.data['utterances']:
             match = self.converse_matchers[self.lang].calc_intent(utt)
-            if match and match["conf"] > best_score:
+            if match.get("conf", 0) > best_score:
                 best_score = match["conf"]
                 response = message.forward(match["name"], match["entities"])