title: Error installing Pillow on ubuntu 14.04
body: <p>I'm trying to install Pillow on Ubuntu 14.04 using this command:</p>
  
  <pre><code>pip install Pillow
  </code></pre>
  
  <p>but the installation fails with this error:</p>
  
  <pre><code>ValueError: --enable-jpeg requested but jpeg not found, aborting.
  </code></pre>