Refactor RateLimiter so that if Redis is not running, everything still runs normally (minus the rate limiting protection). My assumption that creating a Redis connection would throw an exception if Redis wasn't running was wrong. The exceptions actually occur when you issue a command. This is for #224.

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

urlpatterns = patterns('contact.views',
   url(r'^$', 'contact_form', name='contact-form'),
   (r'^thanks/$', 'contact_thanks'),
)