Support Apostrophes in Alias
Hi @plasticrake,

Thanks for all your efforts with this plugin. 

I recently installed it on my PI3 and noticed that the exec generates this recurring error:

**homebridge[9649]: [10/10/2017, 1:30:34 PM] [TPLink.API] client.startDiscovery(): Error parsing JSON: SyntaxError: Unexpected token** 

Furthermore, I have 5 TPLink devices, 3 bulbs and two plugs. The bulbs are getting detected successfully whereas the plugs are not appearing although I can "see" them in and control them in Kasa without any issue.

The config I use in my config.json file is a copy of your own, with minor mods to include the "bulb" type under deviceTypes as well as fix the missing comma between inUseThreshold and timeout (That I suggest you update in your README.md file) as per the below:


   "platforms": [
        {
                "platform": "Hs100",
                "name": "TPLink",
                "deviceTypes": ["plug", "bulb"],
                "pollingInterval": 10,
                "switchModels": ["HS200"],
                "addCustomCharacteristics": true,
                "inUseThreshold": 0, // missing comma here
                "timeout": 5
        }

Any insight you can provide will be much appreciated.
