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 'weblinks/base.html' %}
{% block title %}Web Links: {{ link.title }}{% endblock %}
{% block weblinks_content %}
<h3>Link Details: {{ link.title }}</h3>
<dl>
{% include 'weblinks/link.html' %}
</dl>
{% endblock %}