New: gRPC MVC features, new WithLowercaseRouting option and add some new context methods

read HISTORY.md


Former-commit-id: 30a16cceb11f754aa32923058abeda1e736350e7

_examples/mvc/grpc-compatible/grpc-client/main.go

@@ -39,7 +39,7 @@ func main() {
 	}
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
 	defer cancel()
-	r, err := c.PostHello(ctx, &pb.HelloRequest{Name: name})
+	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})
 	if err != nil {
 		log.Fatalf("could not greet: %v", err)
 	}