EPD-190: Fixed issue where AisLayer could never be shown (when it was hidden during last application exit)
EPD-190: Cleanup
EPD-190: Save S57 settings + cleanup
fixed typo
EPD-190: Fixed typo in getter that prevented property from being serialized to yaml
EPD-190: Store map center as simple values to avoid issue where SnakeYAML would never store internal properties of LatLonPoint.