Rule proposal: forbid innerHTML prop on DOM element tags

React will issue a warning in dev if you try to use pass `innerHTML` prop to a DOM element tag.

https://github.com/facebook/react/blob/85dcbf83/src/renderers/dom/shared/ReactDOMComponent.js#L182-L184

This should be easy enough to enforce for most cases with a linter rule.

Bad:

``` jsx
<div innerHTML='HTML' />
```

Good:

``` jsx
<div dangerouslySetInnerHTML={{ __html: 'HTML' }} />
```
