Update copyright years

doc/doxygen/foreword.html

@@ -1,10 +1,10 @@
 <br/>
 <br/>
-Copyright &copy; 2009–2013 Université de Bordeaux
+Copyright &copy; 2009–2018 Université de Bordeaux
 <br/>
-Copyright &copy; 2010-2013 CNRS
+Copyright &copy; 2010-2018 CNRS
 <br/>
-Copyright &copy; 2011, 2012 Inria
+Copyright &copy; 2011-2018 Inria
 <br/>
 <br/>
 <br/>

doc/doxygen/refman.tex

@@ -2,7 +2,7 @@
 %
 % Copyright (C) 2013,2015-2016                           Inria
 % Copyright (C) 2013-2017                                CNRS
-% Copyright (C) 2014                                     Université de Bordeaux
+% Copyright (C) 2014,2018                                Université de Bordeaux
 %
 % StarPU is free software; you can redistribute it and/or modify
 % it under the terms of the GNU Lesser General Public License as published by
@@ -35,11 +35,11 @@ Generated by Doxygen.
 This manual documents the usage of StarPU version \STARPUVERSION. Its contents
 was last updated on \STARPUUPDATED.\\
 
-Copyright © 2009–2013 Université de Bordeaux\\
+Copyright © 2009–2018 Université de Bordeaux\\
 
-Copyright © 2010-2017 CNRS
+Copyright © 2010-2018 CNRS
 
-Copyright © 2011, 2012, 2016 Inria
+Copyright © 2011-2018 Inria
 
 \medskip