States are not required for Switzerland

Have a customer in Switzerland and I was trying to move his mailing address to Spree and I was getting a validation problem due to this.  From research I believe this is correct, and we may want to revisit the Federated States list from the previous commit (d0585271b7bc8a285b7ffdbeb1af45bdfece1e22), as that doesn't necessarily correlate 1 to 1 with mailing address state requirements.

See http://bitboost.com/ref/international-address-formats/switzerland/
or http://bern.usembassy.gov/contact.html (the CH just means
Switzerland, not a state) or
http://geneva.angloinfo.com/information/housing/post-codes/ etc.