Boost 1.74 bug workaround

boost::serialization 1.74 has a missing header in some of the container
serialization types (list, set). This adds a workaround in blockchain.h,
and reorders the headers in wallet2.h to implicitly get the required
include.

src/cryptonote_core/blockchain.h

@@ -32,6 +32,13 @@
 #include <boost/asio/io_service.hpp>
 #include <boost/serialization/serialization.hpp>
 #include <boost/serialization/version.hpp>
+
+// Workaround for boost::serialization issue #219
+#include <boost/version.hpp>
+#if BOOST_VERSION == 107400
+#include <boost/serialization/library_version_type.hpp>
+#endif
+
 #include <boost/serialization/list.hpp>
 #include <boost/multi_index_container.hpp>
 #include <boost/multi_index/global_fun.hpp>

src/wallet/wallet2.h

@@ -35,8 +35,8 @@
 
 #include <boost/program_options/options_description.hpp>
 #include <boost/program_options/variables_map.hpp>
-#include <boost/serialization/list.hpp>
 #include <boost/serialization/vector.hpp>
+#include <boost/serialization/list.hpp>
 #include <boost/serialization/deque.hpp>
 #include <atomic>
 #include <random>