adjust rest of code to new message structure

test/FediChordSpec.hs

@@ -196,16 +196,16 @@ spec = do
             requestTemplate = Request {
                 requestID = 2342
               , sender = exampleNodeState
-              , parts = 1
               , part = 1
+              , isFinalPart = True
               , action = undefined
               , payload = undefined
                                       }
             responseTemplate = Response {
                 responseTo = 2342
               , senderID = nid exampleNodeState
-              , parts = 1
               , part = 1
+              , isFinalPart = True
               , action = undefined
               , payload = undefined
                                       }