Reference for XIncludes

[Tommy Reynolds]

Uttered Karsten Wade <kwade at redhat.com>, spake thus:

> > Oh, well, these things happen.
> We might make it a policy of using a copy of the 2001/XInclude within
> docs-common/common.  I don't see a local copy of it within Fedora.

Neither do I.  The file is quite small and stable, so we could
get a private copy.

OK, I've done that.  Now I'll play around to see how we can use that
file.

Cheers