constness fixes, round-trip and fuzz-testing for CHOICE
diff --git a/skeletons/NativeInteger.h b/skeletons/NativeInteger.h
index 17a6486..e2741c2 100644
--- a/skeletons/NativeInteger.h
+++ b/skeletons/NativeInteger.h
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Copyright (c) 2004-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
  * Redistribution and modifications are permitted subject to BSD license.
  */
 /*