Fix for #13
Fix for #13

added checknationname AJAX call to check name prior to sending whole thing to
NS (NS stage 2 expects nation name to have already been checked)

corrected reference of style to government_style in nation creation, to actually
send the selected government style to NS

NationStates/NationStatesPlusPlus,NationStates/NationStatesPlusPlus,NationStates/NationStatesPlusPlus