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.

"""
URLs for the POTD application.
"""
from django.conf.urls.defaults import *

urlpatterns = patterns('potd.views',
    url(r'^$', 'view', name='potd-view'),
    url(r'^archive/(\d+)/$', 'archive', name='potd-archive'),
)