Fixed country name string compare to work with unicode #78
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Hi there,
I found a significant issue in the library when looking up for a country that contains non ASCII characters such as Côte d'Ivoire.
The current function to case-insensitive string compare does only work in the ASCII range but not with unicode.
More information on the issue can be found here for example: https://stackoverflow.com/questions/5473542/case-insensitive-string-comparison
I've fixed it and added a test for it.