New branch created for "available features" support

[Eli Zaretskii]

> Date: Fri, 3 Mar 2006 16:35:07 -0500
> From: Daniel Jacobowitz <drow@false.org>
> 
> Feel free to ignore this; it's mostly a brain dump.

A good place to keep this stuff and maintain it as ideas evolve and
design decisions are made is in gdbint.texinfo on that branch.  That
way, when this becomes part of the mainstream, it is automagically
documented ;-)

Thanks.