Implement #45, add a who's online feature for the forums. Created middleware that caches usernames and guest session ids in the cache. Added a tag that displays this info.

#downloads-search {
   text-align: center;
}
#downloads-add td {
    padding-bottom: 5px;
}

#downloads-add fieldset {
    margin: 1em 0 1em;
    padding: 0.5em;
}