Update name, license and contributor policy.

* Change name from "Red Hat elfutils" to "elfutils".
* Update license of standalone tools and test from GPLv2 to GPLv3+.
* Change license of libraries from GPLv2+exception to GPLv2/LGPLv3+.
* Add Developer Certificate of Origin based contributor policy.

top-level:

- COPYING: Upgraded from GPLv2 to GPLv3.
- CONTRIBUTING, COPYING-GPLv2, COPYING-LGPLv3: New files.
- NEWS: Added note about new contribution and license policy.
- Makefile.am: Updated to GPLv3, added new files to EXTRA_DIST.
- configure.ac: Update to GPLv3, changed AC_INIT name to 'elfutils'.

backends, lib, libasm, libcpu, libdw, libdwfl, libebl, libelf:

- All files updated to GPLv2/LGPLv3+. Except some very small files
  (<5 lines) which didn't have any headers at all before, the linker
  .maps files and the libcpu/defs files which only contain data and
  libelf/elf.h which comes from glibc and is under LGPLv2+.

config:

- elfutils.spec.in: Add new License: headers and new %doc files.
- Update all license headers to GPLv2/LGPLv3+ for files used by libs.

src, tests:

- All files updated to GPLv3+. Except for the test bz2 data files, the
  linker maps and script files and some very small files (<5 lines)
  that don't have any headers.

Signed-off-by: Richard Fontana <rfontana@redhat.com>
Signed-off-by: Mark Wielaard <mjw@redhat.com>
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 4ea1436..740dd0f 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -1,28 +1,31 @@
 ## Process this file with automake to create Makefile.in
 ##
 ## Copyright (C) 1996-2011 Red Hat, Inc.
-## This file is part of Red Hat elfutils.
+## This file is part of elfutils.
 ##
-## Red Hat elfutils 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; version 2 of the License.
+## This file is free software; you can redistribute it and/or modify
+## it under the terms of either
 ##
-## Red Hat elfutils is distributed in the hope that it will be useful, but
+##   * the GNU Lesser General Public License as published by the Free
+##     Software Foundation; either version 3 of the License, or (at
+##     your option) any later version
+##
+## or
+##
+##   * 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
+##
+## or both in parallel, as here.
+##
+## elfutils 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 Red Hat elfutils; if not, write to the Free Software Foundation,
-## Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
-##
-## Red Hat elfutils is an included package of the Open Invention Network.
-## An included package of the Open Invention Network is a package for which
-## Open Invention Network licensees cross-license their patents.  No patent
-## license is granted, either expressly or impliedly, by designation as an
-## included package.  Should you wish to participate in the Open Invention
-## Network licensing program, please visit www.openinventionnetwork.com
-## <http://www.openinventionnetwork.com>.
+## You should have received copies of the GNU General Public License and
+## the GNU Lesser General Public License along with this program.  If
+## not, see <http://www.gnu.org/licenses/>.
 ##
 include $(top_srcdir)/config/eu.am
 AM_CFLAGS += -fpic