fix for issue #10 (I think)

Author: eteran

include/cpp-json/json.tcc

@@ -292,7 +292,10 @@ inline std::string value_to_string(const value &v, unsigned options, int indent,
 	static const int indent_width = 2;
 
 	std::stringstream ss;
-
+	
+	std::locale c_locale("C");
+	ss.imbue(c_locale);
+	
 	if(!ignore_initial_ident) {
 		ss << std::string(indent * indent_width, ' ');
 	}