title: Will `TypeDefinition for React v15.0` work with React v0.14.7
body: <p>In my existing project we are already using React v0.14.7.
  Using npm I just did:</p>
  
  <p><code>npm install --save react@0.14.7 react-dom@0.14.7 @types/react @types/react-dom</code></p>
  
  <p>Then I checked <code>node_modules</code> folder and it has a <code>@types/react</code> folder which contains <code>index.d.ts</code> file. 
  The first line of this file says:</p>
  
  <p><code>// Type definitions for React v15.0</code></p>
  
  <p>Now my question: </p>
  
  <p>Is this compatible with React v0.14.7.
  If not then what to do?</p>