Fix options default value overriding False/None set values (fix #120)
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Reorder & cleanup imports in installer module
Move back insert_disc as installer task
Do the `requires` check in insert_disc task case-insensitive

I've stumbled upon varying character cases in ISOs of the same game.
Optimize fix_path_case() by first checking given path
Give runners a human readable name
Pour wine in winesteam logo + clean up hatari logo
Fix "name" variable clash
Put back panning when restoring resolutions
Restore display output position, not panning