NCBC-327: (amendment) Update Nuspec files to current VS Solution Configuration

Change-Id: I9de9d365694ad98cec9e55b26c6dd0eefe7e125c
Reviewed-on: http://review.couchbase.org/31649
Tested-by: Jeffry Morris <jeffrymorris@gmail.com>
Reviewed-by: Brett Lawson <brett19@gmail.com>