zap recent backports

     checks, loads and saves the request.

     PR 60577.  [Yann Ylavic]

  *) mod_proxy_fcgi: Add ProxyFCGISetEnvIf to fixup CGI environment

     variables just before invoking the FastCGI. [Eric Covener,

     Jacob Champion]

  *) mod_proxy: Allow the per-request environment variable "no-proxy" to

     be used as an alternative to ProxyPass /path !. This is primarily

     to set exceptions for ProxyPass specified in <Location> context.

     Use SetEnvIf, not SetEnv. [Eric Covener]

  *) mod_ssl: work around leaks on (graceful) restart. [Yann Ylavic]

  *) When using mod_status with the Event MPM, report the number of requests

     associated with an active connection in the "ACC" field. Previously

     zero was always reported with this MPM.  PR60647. [Eric Covener]

  *) core: %{DOCUMENT_URI} used in nested SSI expressions should point to the

     URI originally requsted by the user, not the nested documents URI. This

     restores the behavior of this variable to match the "legacy" SSI parser.

     PR60624. [Hank Ibell <hwibell gmail.com>]

  *) mod_proxy_hcheck: Don't validate timed out responses.  [Yann Ylavic]

  *) mod_proxy_hcheck: Ensure thread-safety when concurrent healthchecks are

  *) core: Added support for HTTP code 451. PR58985.

     [Yehuda Katz <yehuda ymkatz.net>, Jim Jagielski]

  *) mod_ssl: Add support for OpenSSL 1.1.0. [Rainer Jung]

  *) mod_filter: Fix AddOutputFilterByType with non-content-level filters.

     PR58856 [Micha Lenk <micha lenk.info>]