Merge topic 'copyright-year'

20eef608 Copyright.txt: Update year range to end in 2018

Acked-by: Kitware Robot <[email protected]>
Merge-request: !1613

Copyright.txt

@@ -1,5 +1,5 @@
 CMake - Cross Platform Makefile Generator
-Copyright 2000-2017 Kitware, Inc. and Contributors
+Copyright 2000-2018 Kitware, Inc. and Contributors
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without