gistfile1.phtml

<!-- Twitter widget embedded in block. -->
<a class="twitter-timeline"data-dnt="true" data-tweet-limit="5" href="https://twitter.com/jessetweet" data-widget-id="479455834242445314">Tweets by @jessetweet</a>

<!--Twitter widget script is attached in the footer.-->
<?php
/**
 * Override or insert javascript on the site.
 *
 * @param (array) $js
 *   An array of all JavaScript being presented on the page. I can't figure out why it won't show up if I attach it in the footer.
 */
function MYTHEMENAME_js_alter(&$js) {
  // Process Twitter widgets.
  drupal_add_js('!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?"http":"https";if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+"://platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");', array('type' => 'inline', 'scope' => 'header'));
  $path = drupal_get_path('theme', 'MYTHEMENAME');
  // Customize the look of the Twitter widget. (See https://github.com/kevinburke/customize-twitter-1.1.)
  drupal_add_js($path . '/js/customize-twitter-1.1.min.js');
  drupal_add_js('var options = {"url": "/' . $path . '/css/twitter.css"};CustomizeTwitterWidget(options);', array('type' => 'inline', 'scope' => 'header'));
}
?>