Run redactor outside admin pages

This is a commit to run redactor on any page. You just have to place

`<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
{{ form.media }}`

in your template before `{{ form }}`.

Changes inspired by http://api.jquery.com/jQuery.noConflict/.