Localization fixed.

I tested with two languages, 'en' and 'fi'. 'En' worked because it is not using localization, and 'fi' worked because there are no localization for it. E.g. 'de' and 'fr' fails with segmentation fault. There were something wrong with reading from files, I rewrote it and it is now simpler.

There are something similar with writing settings (which is now just skipped). I will fix that someday too.

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If game keeps crashing, start osso-xterm and run:
Copy+paste results here.