Log Message:
Release Notes - XMLTooling - C++ - Version 1.5.6

** Bug
    * [CPPXT-105] - PKIX revocation checking calls OpenSSL's X509_verify_cert
      in an unsupported way (breaks with OpenSSL 1.0.1p/1.0.2d and later)

Release Notes - XMLTooling - C++ - Version 1.5.5

** Bug
    * [CPPXT-102] - BOOST autoconf macros break with gcc5

Release Notes - XMLTooling - C++ - Version 1.5.4

** Bug
    * [CPPXT-97] - Segfault in HTTPResponse::setResponseHeader when used to
      clear a header
    * [CPPXT-99] - Slightly incorrect User-Agent string with libcurl requests

** Task
    * [CPPXT-100] - Update Windows build to latest libraries

** Improvement
    * [CPPXT-101] - Disable SSLv3 by default in SOAP client

This is part of fixing PR pkg/50354