[READY] IE Fixes

NOTE: IE11 does not support conditional statements. To test this branch in IE, you have to remove the conditional statements from `includes/head.php` and change `<script src="/build/ie8.min.js"></script>` to `<script src="/js/ie8.js"></script>`.

![Fixing IE](http://i.minus.com/ie8ThlpxTTQZp.gif)