Poco now use C++17. We can take some old code away because of that. We
also raise requiments for C++17 so everything works as excpected with
it.
Co-authored-by: Kari Argillander <kari.argillander@fidelix.com>
* Increase PostgreSQL version number
* Take changes from develop for Define Platform Specific cmake
* Take changes from develop for find MySQL modul
* Take changes from develop for find ODBC modul
* Cleanup standard language compile features
* Fix cmake compile features
* Improve to find ODBC on windows
* Enable 64-bit build on AppVeyor
* Switch MySQL off on AppVeyor because of error LNK2038: mismatch detected for _MSC_VER: value 1800 doesnt match value 1900
* Move LCC define to MySQL
