0.01    2017-02-20

        Initial Version with y_x_2_lat_lng() and
        lat_lng_2_y_x()

0.02    2017-02-22

        Make the Module an Exporter so that
        y_x_2_lat_lng and lat_lng_2_y_x can
        be exported.

0.03    2017-09-02 - 2017-09-12

        POD: See also

        Makefile.PL: chmod 775 / shebag

        Use MANIFEST.SKIP rather than ignore.txt