Object literal property shorthand

http://stackoverflow.com/a/33271578/390330

```
return { temperature:temperature, humidity:humidity};
```

Checkout New notations in ES6 : https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Object_initializer

Start by reviewing the linked Stack Overflow answer and MDN object-initializer documentation, then locate the book passage containing the shown temperature and humidity object literal. Done means that passage covers the ES6 property shorthand notation accurately; the issue names no file or section.

Written by the indexing model from the issue text.