OS-2425: prepare for json v9
OS-2425: prepare for json v9

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