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.

{% extends 'base.html' %}
{% load forum_tags %}
{% block title %}Forums: New Topic{% endblock %}
{% block custom_js %}{{ form.media }}{% endblock %}
{% block content %}
{% forum_navigation forum "New Topic" %}

{% show_form "New Topic" form "Submit" 0 %}
{% endblock %}