make it clear only Ubuntu 14.xx.x is supported now (#1768)
make it clear only Ubuntu 14.xx.x is supported now (#1768)


ewiseblatt/spinnaker,duftler/spinnaker,spinnaker/spinnaker,skim1420/spinnaker,skim1420/spinnaker,jtk54/spinnaker,jtk54/spinnaker,spinnaker/spinnaker,ewiseblatt/spinnaker,spinnaker/spinnaker,duftler/spinnaker,duftler/spinnaker,skim1420/spinnaker,skim1420/spinnaker,jtk54/spinnaker,spinnaker/spinnaker,duftler/spinnaker,ewiseblatt/spinnaker,ewiseblatt/spinnaker