changed single stat API to object-based nodes list
changed single stat API to object-based nodes list

Change-Id: I8bd97f6771dcc48133cc5d8d963c16249b22ea4d
Reviewed-on: http://review.membase.org/5151
Reviewed-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>
Tested-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>

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