Accessory registers (at least in the log) => does not show up in app
### Issue
I'm a little stumped here. I see the accessory get registered in the logs, but then I go in to the Home app (and a couple other HomeKit apps for posterity's sake) and I don't see any devices other than my Yeelight strip. Tried running ```sudo homebridge``` and still no dice. 

My main concern is that I was kind of lazy when setting up what I have thus far and instead of installing the npm modules globally with a user with root access, I just ran ```sudo npm install -g [package]```. I would assume that even if that was the issue that running ```sudo homebridge``` would likely fix the issue I'm seeing, but that's clearly not the case.

### Environment
* node version: 8.11.1
* homebridge version: 0.4.42
* homebridge-wol version: 6.0.1
* OS details: 
```
PRETTY_NAME="Raspbian GNU/Linux 9 (stretch)"
NAME="Raspbian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
```

### Configuration
My configuration looks like this:
```
{
    "bridge": {
        "name": "Homebridge",
        "username": "XX:XX:XX:XX:XX:XX",
        "port": 51826,
        "pin": "031-45-154"
    },

    // "description": "",

    "accessories": [
        {
                "accessory": "NetworkDevice",
                "name": "Magic Mirror",
                "mac": "XX:XX:XX:XX:XX:XX",
                "ip": "XXX.XXX.X.XXX",
                "wakeCommand": "sshpass -p '[password]' ssh -oStrictHostKeyChecking=no pi@[ip-address] xscreensaver-command -deactivate",
                "shutdownCommand": "sshpass -p '[password]' ssh -oStrictHostKeyChecking=no pi@[ip-address] xscreensaver-command -activate"
        }
    ],

    "platforms": [
        {
                "platform": "yeelight",
                "name": "Yeelight",
                "transitions": {
                        "power": 400,
                        "brightness": 400
                },
                "multicast": {
                        "interface": "0.0.0.0"
                }
        },
    ]
}
```

### Log
I see this in the logs when I run homebridge:

```
[2018-5-20 21:17:25] Loaded plugin: homebridge-wol
[2018-5-20 21:17:25] Registering accessory 'homebridge-wol.NetworkDevice'
```
