The SIGNUPS_ALLOWED setting is not disabling signups

[bjj]

I set up a new install based on this repo and I was able to make a new account. I thought there might be an exception for "first account" so I tested again and could make another. I enabled the admin token and saw that signups were allowed according to the admin page. I disabled them there and verified that I could not create more users.

[bjj]

I think this is just due to the quoting of 'false'. It also breaks WEBSOCKET_ENABLED which is fixed by changing it from 'true' -> true.

(Websockets may also require expose: 3012 but I didn't test independently)