title: set as featured image not working in wordpress
body: <p>I am working on a <code>wordpress site</code> with nexus theme. I have created a blog page which shows the posts. </p>
  
  <p>When I add a new post and click on <code>set as featured image</code> or <code>add media</code> then I got nothing except and error in console .</p>
  
  <pre><code>TypeError: _.omit is not a function
  http://xyz.com/wp-admin/load-scripts.php?c=0&amp;load%5B%5D=admin-bar,hoverIntent,common,schedule,wp-ajax-response,autosave,suggest,jquery-color,wp-lists,postbox,post,backbone,media-models&amp;load%5B%5D=,wp-plupload,media-views,media-editor,jquery-ui-position,wp-pointer,jquery-ui-menu,jquery-ui-autocomplete,word-count,editor,quic&amp;load%5B%5D=ktags,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-dialog,wpdialogs,wplink,wpdialogs-popup,wp-fullscreen&amp;ver=3.5.1
  Line 89
  </code></pre>
  
  <p>Can anyone help me please how can I resolve this problem</p>
  
  <p>every thing is working fine on my <code>localhost</code></p>
  
  <p><strong>Edit</strong> : </p>
  
  <p>Also when I am clicking on <code>add media</code> at top of the editor, I am getting the same problem</p>