Unknown Broadlink device
I got these lines so I raised this issue.
```
[10/3/2018, 12:30:04 AM] [Broadlink RM]
[Info] We've discovered an unknown Broadlink device. This likely won't cause any issues.

Please raise an issue in the GitHub repository (https://github.com/lprhodes/homebridge-broadlink-rm/issues) with details of the type of device and its device type code: "27c7". The device is connected to your network with the IP address "192.168.1.104".
```
I can provide further information if needed.

Btw, it seems this device not working correctly. I got stuck with there logs:
```
[10/3/2018, 12:30:54 AM] [Broadlink RM] learntest getSwitchState: undefined
[10/3/2018, 12:30:55 AM] [Broadlink RM] Identify requested for learntest
[10/3/2018, 12:31:03 AM] [Broadlink RM] [ERROR] Learn Code (Couldn't learn code, device not found)
```

Thanks.
