enable N1QL based workloads

Change-Id: Ia584efdd626ec5d06c61fe68026d2f0ec34dbbf5
Reviewed-on: http://review.couchbase.org/36650
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Pavel Paulau <pavel.paulau@gmail.com>
use nohup instead of dtach

Change-Id: I70f2b8776facd1c7479a7ec5bda960a0b2b03e8e
Reviewed-on: http://review.couchbase.org/36653
Reviewed-by: Pavel Paulau <pavel.paulau@gmail.com>
Tested-by: buildbot <build@couchbase.com>