title: Codeigniter 3 does not upload jpeg image
body: <p>I have problem when i try to upload <code>jpeg</code> image. 
  My configuration is :</p>
  
  <pre><code>$config['allowed_types'] = 'gif|jpg|png|jpeg';
  </code></pre>
  
  <p>And mimes:</p>
  
  <pre><code>'jpeg'  =&gt;  array('image/jpeg', 'image/pjpeg'),
  </code></pre>
  
  <p>All other formats like <code>gif, jpg, png</code> work fantastic, only not work when i try to upload <code>jpeg</code></p>
  
  <p>What can be problem? Anyone have some problem ?</p>