Update libcouchbase version for builder

Change-Id: Ia04d9dd1ce8f9becc572b17cd53e994a2fd38ecb
Reviewed-on: http://review.couchbase.org/36095
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>
Tested-by: Sergey Avseyev <sergey.avseyev@gmail.com>