update copyright date

- add "alone" files in update-copyright tool
- make a pass of this last tool to fix dates

Change-Id: I1f276a132c0d5468b81400bbb50889e80823f45c
Signed-off-by: Guillaume Roguez <guillaume.roguez@savoirfairelinux.com>
Reviewed-by: Stepan Salenikovich <stepan.salenikovich@savoirfairelinux.com>

configure.ac

@@ -4,7 +4,7 @@ dnl Process this file with autoconf to produce a configure script.
 AC_PREREQ([2.65])
 AC_INIT([Ring],[2.3.0],[ring@lists.savoirfairelinux.net],[ring])
 
-AC_COPYRIGHT([[Copyright (c) Savoir-faire Linux 2004-2015]])
+AC_COPYRIGHT([[Copyright (c) Savoir-faire Linux 2004-2016]])
 AC_REVISION([$Revision$])
 
 dnl Where to find configure files

tools/update-copyright

@@ -20,7 +20,8 @@
 #
 
 # List all files in current directory
-FILES=`find -name "*.h" -o -name "*.c" -o -name "*.cpp" -o -name "*.i" -o -name "README" -o -name "*.sh" -o -name "*.py" -o -name "*.mm" -o -name "update-copyright" -o -name "*.patch" -o -name "copyright"`
+FILES=`find -name "*.h" -o -name "*.c" -o -name "*.cpp" -o -name "*.i" -o -name "*.sh" -o -name "*.py" -o -name "*.mm" -o -name "*.patch" -o -name "README"`
+FILES+=" ./configure.ac ./tools/update-copyright"
 year=`date +%Y`
 
 # Loop and replace