Classify ns_node_disco events for bug 842
Classify ns_node_disco events for bug 842

Signed-off-by: Patrick Galbraith <a7ea3cc0d4c52db8543977e2dbc52a2e533a524f@northscale.com>

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