Change default value for Language from "System" (in one place) and "-" (in another place) to just "" everywhere, so it all works. Also remove the lower-casing of locale NativeName (I know they're not consistent but that's not our fault DisplayName and EnglishName seem consistent, but I don't know if DisplayName stays consistent in other OS locales...).
git-svn-id: http://svn.uktrainsim.com/svn/openrails/trunk@2065 a9f3cfff-6c41-7446-b0ca-052bd761e6eb