For #95. You can now make posts with no text in the body if you have attachments. And now if you create a new topic with an attachment, and the POST fails (say you forgot the topic title), we will now re-attach attachments. Also fixed a bug in the smiley code that would arise if it was asked to markup an empty string.

{% load core_tags %}
<p>
<span class="shoutbox-user">{{ shout.user.username }}:</span>
<span class="shoutbox-shout">{{ shout.html|safe }}</span><br />
<span class="shoutbox-date">{{ shout.shout_date|elapsed }}</span>
</p>