Add Support for Zwave Lights & Thermostats

[j3rm]

Hi,
I am a fellow developer, but JS/Node.js is not one of my languages. I'd like to help further this project by providing a environment to test these new features. If thats not something your interested in doing, I will attempt to add the features and add a pull request. Please let me know. Thanks

[sgentry]

I'm open to work on adding support for these. I haven't looked at Zwave but the thermostat commands shouldn't be too difficult. So you'd be willing to test these out for me?

[sgentry]

I published a beta version with a new method "setThermostat". If you have a thermostat to test this out on, that would be great.

npm install elkmon@beta