Log Message:
Updated ap-ssl to 2.8.16.

Major changes since 2.8.15:

   *) Upgraded to Apache 1.3.29

   *) Avoid memory corruption in certificate handling caused by a heap
      memory double-freeing situation.

   *) Allow "HTTPS" variable to be passed through by suEXEC.

   *) Clear the OpenSSL error code in pass phrase reading code to
      workaround the following situation: multiple keys, all with
      different passphrases -- entering the correct pass phrase at each
      prompt leads to an OpenSSL error message after the last prompt.

   *) Reverted the recent change where ap_cleanup_for_exec() called
      ap_kill_alloc_shared(). This caused nasty side-effects in other
      processes and is not necessary at all (because shared memory
      segments are not inherited across exec).

   *) mod_ssl was checking the OpenSSL error reason code against
      SSL_R_HTTP_REQUEST and concluded the result is an SSL error. Since
      OpenSSL reason codes are not unique, this isn't always the case.
      It now additionally checks that the library is the SSL library.