added all files for release 0.4.0

example/virtual_specifiers/final_class_error.cpp

@@ -0,0 +1,20 @@
+
+// Copyright (C) 2008-2012 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0
+// (see accompanying file LICENSE_1_0.txt or a copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// Home at http://sourceforge.net/projects/contractpp
+
+#include "final_class.hpp"
+#include <contract.hpp>
+
+//[final_class_error
+CONTRACT_CLASS(
+    class (y) extends( public x ) // Correctly errors because `x` is final.
+) {
+    CONTRACT_CLASS_INVARIANT( void )
+};
+//]
+
+int main ( void ) { return 0; }
+