Guess file extension based on content-type. When downloading a file, and no path is supplied to store it, guess the file extension using mimetypes and the content-type header. Also supply a unit test for the HotLinkImageForm.

"""urls for the IRC application"""
from django.conf.urls import patterns, url

urlpatterns = patterns('irc.views',
   url(r'^$', 'view', name='irc-main'),
)