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.

div.weblinks-link-sort {
   padding-bottom: .5em;
}

ul.weblinks-link-options {
   margin: 0;
   padding-left: 0;
   list-style-type: none;
}

ul.weblinks-link-options li {
   display: inline;
   padding: 0 5px;
}