PUBAPI-834: Sub-user machine creation
PUBAPI-834: Sub-user machine creation

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