Monkey patched User model. Poller js is templated. Plus minor changes

[flowspy] / templates / add_port.html

<form id="add_port_form" method="POST">
        {% csrf_token %}
<table>
<tr><th>Port</th><td>{{ form.port }}<span class="error" id='rl_error'>{{ form.port.errors|join:", " }}</span></td></tr>
</table>
</form>