removeCommentsFromCDATA strip html comments with unexpect result

[allex]

options:

{ removeCommentsFromCDATA: true }

html code:

<script type="text/html">
<div>
</div>
<!-- aa -->
</script>

---

=>

<script type=text/html><div>
</div>
<!-- aa</script>

[alexlamsl]

@kangax related to #523 somewhat...