Release 2.24.0

- [FEATURE] QUIC and HTTP/3 Internet Draft 31 support.  Drop ID-30
  and ID-31 support.
- [BUGFIX] Divide-by-zero in newly enabled conn stats code when no
  packets were sent.
- [BUGFIX] Memory leak in gQUIC client when server hello cannot be
  parsed.
- [BUGFIX] Server Initial packet size calculation.
- Log user-agent and CONN_CLOSE reason when peer reports error.
- Example programs: Specify ALPN for echo and md5 clients and servers
  (issue #184).
- Example programs: Don't add "QUIC_" prefix to lines in keylog file
  (issue #185).
- http_server: Fix fd leak in preadv mode; fix preadv() usage when
  reading from disk.

bin/md5_client.c

@@ -460,6 +460,7 @@ main (int argc, char **argv)
 
     TAILQ_INIT(&sports);
     prog_init(&prog, 0, &sports, &client_file_stream_if, &client_ctx);
+    prog.prog_api.ea_alpn = "md5";
 
     while (-1 != (opt = getopt(argc, argv, PROG_OPTS "bhr:f:p:")))
     {