MB-100 check partition id for stream_req during the takeover

Change-Id: I2a91821b94454db0be8ca06c195a3b440c816032
Reviewed-on: http://review.couchbase.org/34909
Tested-by: Artem Stemkovski <artem@couchbase.com>
Reviewed-by: Artem Stemkovski <artem@couchbase.com>