[skip ci] Updated licenses and gitignores

options/license/HP-1989

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+Copyright (c) 1990- 1993, 1996 Open Software Foundation, Inc.
+Copyright (c) 1989 by Hewlett-Packard Company, Palo Alto, Ca.
+Digital Equipment Corporation, Maynard, Mass.
+Copyright (c) 1998 Microsoft.
+To anyone who acknowledges that this file is provided "AS IS"
+without any express or implied warranty: permission to use, copy,
+modify, and distribute this file for any purpose is hereby
+granted without fee, provided that the above copyright notices and
+this notice appears in all source code copies, and that none of
+the names of Open Software Foundation, Inc., Hewlett-Packard
+Company, Microsoft, or Digital Equipment Corporation be used in
+advertising or publicity pertaining to distribution of the software
+without specific, written prior permission. Neither Open Software
+Foundation, Inc., Hewlett-Packard Company, Microsoft, nor Digital
+Equipment Corporation makes any representations about the
+suitability of this software for any purpose.

options/license/Soundex

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+# (c) Copyright 1998-2007 by Mark Mielke # # Freedom to use
+these sources for whatever you want, as long as credit # is
+given where credit is due, is hereby granted. You may make
+modifications # where you see fit but leave this copyright
+somewhere visible. As well, try # to initial any changes you
+make so that if I like the changes I can # incorporate them
+into later versions. # # - Mark Mielke <mark@mielke.cc>

options/license/Texinfo-exception

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+As a special exception, when this file is read by TeX when
+processing a Texinfo source document, you may use the result without
+restriction. This Exception is an additional permission under
+section 7 of the GNU General Public License, version 3 ("GPLv3").