TOOLS-984: incr-upgrade/download-image.sh doesn't know about updates.joyent.com channels
TOOLS-984: incr-upgrade/download-image.sh doesn't know about updates.joyent.com channels

kaizengarden/sdc-headnode,numericillustration/sdc-headnode,kaizengarden/sdc-headnode,joyent/sdc-headnode,numericillustration/sdc-headnode,joyent/sdc-headnode,kaizengarden/sdc-headnode,joyent/sdc-headnode,numericillustration/sdc-headnode,joyent/sdc-headnode,kaizengarden/sdc-headnode