title: Babel plugin for react state outside of constructor
body: <p>What babel plugin do i need to be able to use the following syntax?</p>
  
  <pre><code>class Temp extends React.Component {
      ---&gt; state = {
               test: '',
           }
  
          ....rest
  }
  </code></pre>
  
  <p>i have <code>babel-core</code>, <code>babel-reset-env</code> and <code>babel-preset-react</code> in my dev dependencies and my <code>.babelrc</code> has:</p>
  
  <pre><code>{
    "presets": [
      "env", "react"
    ]
  }
  </code></pre>
  
  <p>While playing around on the babel site, i noticed that that syntax was being controlled by <code>babel-stage-2</code>. I couldn't find a reference to it in <code>creat-react-app</code> so i wanted to know how to actually enable that in my project. </p>
  
  <p>Thanks for the help!</p>