COPYING: update and refactor the Copyright notices

Signed-off-by: Gaetan Nadon <memsize@videotron.ca>

COPYING

@@ -1,16 +1,21 @@
-Various copyright notices found in this driver:
+Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
-
+Copyright 1993 by David Dawes <dawes@xfree86.org>
-Copyright © 2004-2008 Red Hat, Inc.
+Copyright 2002 by SuSE Linux AG, Author: Egbert Eich
+Copyright 1994-2002 by The XFree86 Project, Inc.
+Copyright 2002 by Paul Elliott
+Copyright © 2008 University of South Australia
+Copyright 2008 by Chris Salch
+Copyright © 2008 Red Hat, Inc.
 
 Permission to use, copy, modify, distribute, and sell this software
 and its documentation for any purpose is hereby granted without
 fee, provided that the above copyright notice appear in all copies
 and that both that copyright notice and this permission notice
-appear in supporting documentation, and that the name of Red Hat
+appear in supporting documentation, and that the name of the authors
-not be used in advertising or publicity pertaining to distribution
+not be used in advertising or publicity pertaining to distribution of the
-of the software without specific, written prior permission.  Red
+software without specific, written prior permission.  The authors make no
-Hat makes no representations about the suitability of this software
+representations about the suitability of this software for any
-for any purpose.  It is provided "as is" without express or implied
+purpose.  It is provided "as is" without express or implied
 warranty.
 
 THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
@@ -42,34 +47,6 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 DEALINGS IN THE SOFTWARE.
 
-Copyright © 2008 University of South Australia
-copyrights taken from xf86-input-mouse, partly valid for this driver.
-Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
-Copyright 1993 by David Dawes <dawes@xfree86.org>
-Copyright 2002 by SuSE Linux AG, Author: Egbert Eich
-Copyright 1994-2002 by The XFree86 Project, Inc.
-Copyright 2002 by Paul Elliott
-
-Permission to use, copy, modify, distribute, and sell this software
-and its documentation for any purpose is hereby granted without
-fee, provided that the above copyright notice appear in all copies
-and that both that copyright notice and this permission notice
-appear in supporting documentation, and that the name of the authors
-not be used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  The authors make no
-representations about the suitability of this software for any
-purpose.  It is provided "as is" without express or implied
-warranty.
-
-THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
-INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
-NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
-CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
-OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
-NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
-CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-
 Copyright 2005 Adam Jackson.
 
 Permission is hereby granted, free of charge, to any person obtaining a