PUBAPI-774: ListMachines with a 'dataset' filter is broken
PUBAPI-774: ListMachines with a 'dataset' filter is broken

KrisShannon/sdc-cloudapi,arekinath/sdc-cloudapi,misterbisson/sdc-cloudapi,joyent/sdc-cloudapi,joyent/sdc-cloudapi,arekinath/sdc-cloudapi,misterbisson/sdc-cloudapi,KrisShannon/sdc-cloudapi