Version 'Remapped:' and 'Ignored:' fields.
The initial CBD implementation updated only the 'Paths:' and
'Description:' fields in the live Stream Spec when the versioned
form, the *.cbdsst file, was updated. The 'Remapped:' and
'Ignored:' are ignored.
That functions as initially designed, based on the "miminally
intrusive" philosphy to avoid unnecessary impact of the custom
CBD logic. However, later it was deeemd better for all aspects
of the stream spec to be dictated by the versioned from of the
file if we're going to have one at all, so they can go through
the same merge down/copy up flow as Paths updates.
Also isolate and any other stream spec items would be grand! Even if its just whatever is n the cbdsst gets pushed into the stream spec.