Try to load scores from the system location if available Maelstrom 3.0.7 switched to a local directory for the user for the scores. Since we do not want users to lose their scores, in case there are no scores in the user location try to load the ones in the old system location. New scores are saved in the local directory anyway.
rename the custom 'install' target as 'install-data-hook' automake creates its own 'install' target in the generated Makefile, and the custom target shadows it; instead, install the extra bits additionally, within a 'install-data-hook' target.
