IMGAPI-357: workaround IMAGE-461 by clearing zoneinit's application/done svcprop in smartos-prepare-image
IMGAPI-357: workaround IMAGE-461 by clearing zoneinit's application/done svcprop in smartos-prepare-image

joyent/sdc-imgapi,joyent/sdc-imgapi,numericillustration/sdc-imgapi,numericillustration/sdc-imgapi,numericillustration/sdc-imgapi,joyent/sdc-imgapi