tinymce is not defined
<script src="https://cdnjs.cloudflare.com/ajax/libs/tinymce/4.5.6/tinymce.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/tinymce/4.5.6/jquery.tinymce.min.js"></script>