MB-100: ns_server to point to the right branch

- abhinav's toybuild

Change-Id: I56c13335238eb39f72e2567486e4c40818a3fd2c
Reviewed-on: http://review.couchbase.org/26789
Reviewed-by: abhinav dangeti <abhinav.dangeti@gmail.com>
Tested-by: abhinav dangeti <abhinav.dangeti@gmail.com>