Use site_name if the system sends a message.
Addresses comments on r2564.
Patch by: Lennard de Rijk
Reviewed by: to-be-reviewed
<tr class="off" onmouseover="this.className='on'" onmouseout="this.className='off'"
onclick="document.location.href='{{ list.redirect }}'" name="name">
<td align="right"><div class="name"><a class="noul"
href="{{ list.redirect }}">
{% if list.item.from_user %}
{{ list.item.from_user.name }}
{% else %}
{{ site_name }}
{% endif %}
</a>
</div>
</td>
<td><div class="subject">{{ list.item.subject }}</div></td>
<td><div class="created_on">{{ list.item.created_on }} </div> </td>
</tr>