check per node memcached startup
check per node memcached startup

Change-Id: Icca7908d8c96b888b26f5ff33b5588690cee0604
Reviewed-on: http://review.membase.org/5797
Tested-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>
Reviewed-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>

membase/ns_server,pavel-blagodov/ns_server,mschoch/ns_server,nimishzynga/ns_server,daverigby/ns_server,vzasade/ns_server,mschoch/ns_server,ceejatec/ns_server,ceejatec/ns_server,ceejatec/ns_server,daverigby/ns_server,t3rm1n4l/ns_server,daverigby/ns_server,vzasade/ns_server,ceejatec/ns_server,nimishzynga/ns_server,membase/ns_server,membase/ns_server,t3rm1n4l/ns_server,nimishzynga/ns_server,nimishzynga/ns_server,membase/ns_server,ceejatec/ns_server,pavel-blagodov/ns_server,vzasade/ns_server,daverigby/ns_server,membase/ns_server,mschoch/ns_server,mschoch/ns_server,vzasade/ns_server,ceejatec/ns_server,daverigby/ns_server,pavel-blagodov/ns_server,pavel-blagodov/ns_server,t3rm1n4l/ns_server,mschoch/ns_server,nimishzynga/ns_server,nimishzynga/ns_server,membase/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,t3rm1n4l/ns_server