Update license year range to 2016

Signed-off-by: NRich Salz <rsalz@openssl.org>
Reviewed-by: NRichard Levitte <levitte@openssl.org>

LICENSE

@@ -12,7 +12,7 @@
   ---------------
 
 /* ====================================================================
- * Copyright (c) 1998-2011 The OpenSSL Project.  All rights reserved.
+ * Copyright (c) 1998-2016 The OpenSSL Project.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions