Document SERVER_UUID variable for dev testing
Document SERVER_UUID variable for dev testing

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