pinax-theme-bootstrap has inline scripts that can't be overridden

[Kataract]

This causes issues for #20

Signup contains a <script> block:

    <script type="text/javascript">
        $(document).ready(function() {
            $('#id_username').focus();
        });
    </script>

This is part of the pinax-theme-bootstrap templates, and interferes with attempts to focus form errors.