Update country codes and names

Changed:
Serbia and Montenegro to "Serbia" and "Montenegro" (http://www.iso.org/iso/iso_3166-3_newsletter_i-4.pdf),
Netherlands Antilles to "Bonaire, Sint Eustatius and Saba", "Curaçao" and "Sint Maarten (Dutch part)" (http://www.iso.org/iso/iso_3166-3_newsletter_i-6.pdf)