title: react-datepicker value isn't changed when new date is selected
body: <p>I'm using a react datepicker (<a href="https://github.com/Hacker0x01/react-datepicker/" rel="nofollow">https://github.com/Hacker0x01/react-datepicker/</a>)
  When i change the date the value doesn't change to the date that i clicked.</p>
  
  <p>I see this is a bug in the original component and i have reported it to the creator.</p>
  
  <p>I was wondering if anyone has solved this problem before?</p>
  
  <p>To see what i mean check take the following steps:</p>
  
  <ol>
  <li>Go to <a href="http://hacker0x01.github.io/react-datepicker/" rel="nofollow">http://hacker0x01.github.io/react-datepicker/</a></li>
  <li>Inspect element on the date input field</li>
  <li>Change the date with the pop-out box</li>
  <li>Check the value of the inputbox again with inspect element. The value is still set to the date of today.</li>
  </ol>
  
  <p>Hope someone has the answer for me!</p>