Update debian/copyright.

debian/copyright

@@ -58,7 +58,7 @@ License: GPL-2 with DUNE exception
 
 Files: cmake/modules/CheckForPthreads.c cmake/modules/FindThreadsCMake31.cmake
 Copyright:
-  2002-2009 Kitware, Inc.
+  2002-2015 Kitware, Inc.
   2011-2014 Rolf Eike Beer <eike@sf-mail.de>
 License: BSD-3-clause
  CMake - Cross Platform Makefile Generator
@@ -95,7 +95,7 @@ License: BSD-3-clause
  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 Files: cmake/modules/UseLATEX.cmake
-Copyright: 2004, Sandia Corporation
+Copyright: 2004-2015, Sandia Corporation
 License: other
  Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive
  license for use of this work by or on behalf of the
@@ -107,27 +107,6 @@ Files: doc/dunecontrol.1
 Copyright: 2013-2015, Oliver Sander
 License: GNU-All-Permissive-License
 
-Files: m4/acx_blas.m4 m4/acx_lapack.m4 m4/acx_mpi.m4 m4/acx_pthread.m4
-Copyright: 2001-2005, Steven G. Johnson <stevenj@alum.mit.edu>
-License: GPL-2+ with Autoconf Macro exception
-Comment: see older autoconf-archive packages
-
-Files: m4/ax_boost_base.m4
-Copyright:
-  2008, Thomas Porschberg <thomas@randspringer.de>
-  2009, Peter Adolphs
-License: GNU-All-Permissive-License
-
-Files: m4/ax_check_gl.m4 m4/ax_lang_compiler_ms.m4
-Copyright: 2004, Braden McDaniel <braden@endoframe.com>
-License: GNU-All-Permissive-License
-Comment: see older autoconf-archive packages
-
-Files: m4/immdx_lib_metis.m4
-Copyright: 2003, Ben Bergen <ben@cs.fau.de>
-License: GNU-All-Permissive-License
-Comment: see older autoconf-archive packages
-
 Files: debian/*
 Copyright: 2011-2015, Ansgar Burchardt <ansgar@debian.org>
 License: GPL-2 with DUNE exception
@@ -156,36 +135,6 @@ License: GPL-2 with DUNE exception
  On Debian systems, the full text of the GNU General Public License version 2
  can be found in the file  `/usr/share/common-licenses/GPL-2'.
 
-License: GPL-2+ with Autoconf Macro exception
- 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 the
- Free Software Foundation; either version 2 of the License, or (at your
- option) any later version.
- .
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
- Public License for more details.
- .
- You should have received a copy of the GNU General Public License along
- with this program. If not, see <http://www.gnu.org/licenses/>.
- .
- As a special exception, the respective Autoconf Macro's copyright owner
- gives unlimited permission to copy, distribute and modify the configure
- scripts that are the output of Autoconf when processing the Macro. You
- need not follow the terms of the GNU General Public License when using
- or distributing such scripts, even though portions of the text of the
- Macro appear in them. The GNU General Public License (GPL) does govern
- all other use of the material that constitutes the Autoconf Macro.
- .
- This special exception to the GPL applies to versions of the Autoconf
- Macro released by the Autoconf Archive. When you make and distribute a
- modified version of the Autoconf Macro, you may extend this special
- exception to the GPL to apply to your modified version as well.
- .
- On Debian systems, the full text of the GNU General Public License version 2
- can be found in the file  `/usr/share/common-licenses/GPL-2'.
-
 License: GNU-All-Permissive-License
  Copying and distribution of this file, with or without modification, are
  permitted in any medium without royalty provided the copyright notice