minimal changes for compatibility with lua 5.2, thanks to v4hn for fixing standard library loads. note: ALSO compatibile with (internal) lua 5.1, until something bothers to upgrade bundled lua version

+
−install(FILES
+
−    map.png
+
−    mask.png
+
−    map.cfg
+
−    preview.png
+
−    DESTINATION ${SHAREPATH}Data/Maps/EarthRise)