PUBAPI-976: cap max body size, just in case
PUBAPI-976: cap max body size, just in case

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