update changes

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1923151 13f79535-47bb-0310-9956-ffa450edef68

Author: icing

CHANGES

@@ -1,6 +1,14 @@
                                                          -*- coding: utf-8 -*-
 Changes with Apache 2.4.63
 
+  *) mod_md: update to version 2.4.31
+     - Improved error reporting when waiting for ACME server to verify domains
+       or finalizing the order fails, e.g. times out.
+     - Increasing the timeouts to wait for ACME server to verify domain names
+       and issue the certificate from 30 seconds to 5 minutes.
+     - Change a log level from error to debug when Stapling is enabled but a
+       certificate carries no OCSP responder URL.
+
   *) mod_proxy_balancer: Fix the handling of the stickysession configuration
      parameter by the balancer manager. PR 69510
      [Yutaka Tokunou <[email protected]>]