PUBAPI-498: Make sure cannot use tags to search for other customer machines.
PUBAPI-498: Make sure cannot use tags to search for other customer machines.

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