doc: update copyright following #4260 and #4261

doc/vector_scal_c.texi

@@ -1,13 +1,7 @@
-@copying
-    Copyright (C) 2009-2011  Université de Bordeaux 1
-    Copyright (C) 2010, 2011  Centre National de la Recherche Scientifique
-
-    Permission is granted to copy, distribute and/or modify this document
-    under the terms of the GNU Free Documentation License, Version 1.3
-    or any later version published by the Free Software Foundation;
-    with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
-    See the GNU Free Documentation License in COPYING.GFDL for more details.
-@end copying
+@c This file is part of the StarPU Handbook.
+@c Copyright (C) 2009-2011  Université de Bordeaux 1
+@c Copyright (C) 2010, 2011  Centre National de la Recherche Scientifique
+@c See the file starpu.texi for copying conditions.
 
 @smallexample
 /*

doc/vector_scal_cpu.texi

@@ -1,13 +1,7 @@
-@copying
-    Copyright (C) 2009-2011  Université de Bordeaux 1
-    Copyright (C) 2010, 2011  Centre National de la Recherche Scientifique
-
-    Permission is granted to copy, distribute and/or modify this document
-    under the terms of the GNU Free Documentation License, Version 1.3
-    or any later version published by the Free Software Foundation;
-    with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
-    See the GNU Free Documentation License in COPYING.GFDL for more details.
-@end copying
+@c This file is part of the StarPU Handbook.
+@c Copyright (C) 2009-2011  Université de Bordeaux 1
+@c Copyright (C) 2010, 2011  Centre National de la Recherche Scientifique
+@c See the file starpu.texi for copying conditions.
 
 @smallexample
 #include <starpu.h>

doc/vector_scal_cuda.texi

@@ -1,13 +1,7 @@
-@copying
-    Copyright (C) 2009-2011  Université de Bordeaux 1
-    Copyright (C) 2010, 2011  Centre National de la Recherche Scientifique
-
-    Permission is granted to copy, distribute and/or modify this document
-    under the terms of the GNU Free Documentation License, Version 1.3
-    or any later version published by the Free Software Foundation;
-    with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
-    See the GNU Free Documentation License in COPYING.GFDL for more details.
-@end copying
+@c This file is part of the StarPU Handbook.
+@c Copyright (C) 2009-2011  Université de Bordeaux 1
+@c Copyright (C) 2010, 2011  Centre National de la Recherche Scientifique
+@c See the file starpu.texi for copying conditions.
 
 @smallexample
 #include <starpu.h>

doc/vector_scal_opencl.texi

@@ -1,13 +1,7 @@
-@copying
-    Copyright (C) 2009-2011  Université de Bordeaux 1
-    Copyright (C) 2010, 2011  Centre National de la Recherche Scientifique
-
-    Permission is granted to copy, distribute and/or modify this document
-    under the terms of the GNU Free Documentation License, Version 1.3
-    or any later version published by the Free Software Foundation;
-    with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
-    See the GNU Free Documentation License in COPYING.GFDL for more details.
-@end copying
+@c This file is part of the StarPU Handbook.
+@c Copyright (C) 2009-2011  Université de Bordeaux 1
+@c Copyright (C) 2010, 2011  Centre National de la Recherche Scientifique
+@c See the file starpu.texi for copying conditions.
 
 @smallexample
 #include <starpu.h>

doc/vector_scal_opencl_codelet.texi

@@ -1,13 +1,7 @@
-@copying
-    Copyright (C) 2009-2011  Université de Bordeaux 1
-    Copyright (C) 2010, 2011  Centre National de la Recherche Scientifique
-
-    Permission is granted to copy, distribute and/or modify this document
-    under the terms of the GNU Free Documentation License, Version 1.3
-    or any later version published by the Free Software Foundation;
-    with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
-    See the GNU Free Documentation License in COPYING.GFDL for more details.
-@end copying
+@c This file is part of the StarPU Handbook.
+@c Copyright (C) 2009-2011  Université de Bordeaux 1
+@c Copyright (C) 2010, 2011  Centre National de la Recherche Scientifique
+@c See the file starpu.texi for copying conditions.
 
 @smallexample
 __kernel void vector_mult_opencl(__global float* val, int nx, float factor)