node metrics app changes for karaf 4.2.1 CLI
node metrics app changes for karaf 4.2.1 CLI

Change-Id: Ieb26518cd83aebeffd36cc66054a2db6526fd04a

opennetworkinglab/onos,oplinkoms/onos,opennetworkinglab/onos,kuujo/onos,oplinkoms/onos,kuujo/onos,opennetworkinglab/onos,kuujo/onos,oplinkoms/onos,kuujo/onos,kuujo/onos,gkatsikas/onos,gkatsikas/onos,gkatsikas/onos,oplinkoms/onos,opennetworkinglab/onos,gkatsikas/onos,opennetworkinglab/onos,gkatsikas/onos,opennetworkinglab/onos,oplinkoms/onos,kuujo/onos,oplinkoms/onos,oplinkoms/onos,kuujo/onos,gkatsikas/onos