Urania 1.91 release 2

Moving source code base into newer version of development environment took longer than planned. And more, some unexpected problems came out. So instead of releasing version 1.92 with new features, next Trial extension was compiled with sources of 1.91. New Urania Trial 1.91-2 with extended trial period can be downloaded from http://www.astrologia.pl/urania-en.html.