"normal" zerotier-one build returns "controller": true from API endpoint

[sarnold]

One might assume that only the "controller" build would return True but both builds return the same result from a GET command against http://localhost:9993/controller

Steps to reproduce:

1. Build zerotier both ways, install each package one at a time and start zerotier;
2. For each package do:

curl -X GET --header "X-ZT1-Auth: <zt_auth_token>" http://localhost:9993/controller

4. See the output

{
        "controller": true,
        "apiVersion": 4,
        "clock": 1580159810075,
        "databaseReady": true
}

Expected result:

True for the controller build, otherwise False.