ODE 2.1.1 documentation

[Tony Aiuto]

It looks like I have the ODE source (with doc sources) for 2.3.4 and 2.3.6

2.3.4 is from 1997, 2.3.6 from 1998.  Is that old enough for you?

IANAL, but the copyright doc looks good

Copyright (c), 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998

The Open Group Research Institute ("TOG RI"),

Permission is hereby granted to use, copy, modify and freely distribute
the software in these files and their documentation for any purpose without
fee, provided that the above copyright notice appears in all copies and
that both the copyright notice and this permission notice appear in
supporting documentation.  Further, provided that the name of The Open
Group Research Institute TOG RI not be used in advertising or
publicity pertaining to distribution of the software without prior
written permission from TOG RI.  TOG RI makes no representations
about the suitability of this software for any purpose.  It is provided
"as is" without express or implied warranty.