Makefile, manual: Bump copyright year

Happy 2017!

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

Makefile

@@ -2,7 +2,7 @@
 #
 # Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
 # Copyright (C) 2006-2014 by the Buildroot developers <buildroot@uclibc.org>
-# Copyright (C) 2014-2016 by the Buildroot developers <buildroot@buildroot.org>
+# Copyright (C) 2014-2017 by the Buildroot developers <buildroot@buildroot.org>
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

docs/manual/manual.txt

@@ -12,7 +12,7 @@ It is licensed under the GNU General Public License, version 2. Refer to the
 http://git.buildroot.org/buildroot/tree/COPYING[COPYING] file in the Buildroot
 sources for the full text of this license.
 
-Copyright (C) 2004-2014 The Buildroot developers
+Copyright (C) 2004-2017 The Buildroot developers
 
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