OS-2645: IMGADM_LOG_LEVEL support for controlling imgadm logging
OS-2561: vmadm should allow filtering by firewall_enabled
wip
OS-2645: style / lint fixes
OS-2646: vmadm: updating firewall_enabled=true errors out with "select attr: No such resource with that id"
OS-2649: fwadm should not require files in /usr/node/node_modules