NewsItem Detail view: type hiding is broken

[slinkp]

If in your preferences you click "Hide" next to eg. events, and then go to a place detail timeline view eg. http://demo.openblockproject.org/locations/neighborhoods/fenwaykenmore/ not only do you not see any events, you don't see the control to un-hide them, or any indication that they exist. This is confusing because the map always shows all types so you know stuff should be shown in the list. From the markup:

                <h4 class="hidden" id="events-20110526">
                    3 Events
                    <a class="toggle show" href="#">Show</a>
                </h4>
                <div class="hidden">
                    <ul>

    <li id="newsitem-30036" class="newsitem">

        <span class="location">15 Lansdowne St.</span>
        <strong class="title"><a href="/events/detail/30036/" class="url">Event: The Cars at House Of Blues, Thu, May 26 7:00p</a></strong>
        <p class="info"><span class="date">May 26, 2011</span> </p>
    </li>
...
</ul>
</div>

• The h4 should not be hidden
• The toggle should be labeled "Show" when the ul is hidden, and "Hide" when it's shown

[slinkp]

dupe of #115

[slinkp]

Ticket imported from Trac: http://developer.openblockproject.org/ticket/168 Reported by: slinkp