Nest device type with a bunch of new features

[ewomack (Eric Womack)]

Mode changes with nest support

So I used the codes provided by @dianoga and created a new Away/Home mode on the Nest Thermostat based on the Presence Sensor. I didn’t like the away Mode so I decided to let Nest change its modes based on my presence. It has worked well so far, and I wanted to share with all of you in case you guys didn’t like away modes. I even created a little icon for it /** * Nest Auto Away * * Copyright 2014 Samuel Wang * * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except * in compliance with the License. You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed * on an "AS I…