[templates] Allow going back and forward in time

vrobbler/templates/scrobbles/_row.html

@@ -0,0 +1,7 @@
+{% load humanize %}
+{% load naturalduration %}
+<tr>
+    <td>{% if scrobble.in_progress %}{{scrobble.media_obj.strings.verb}} now | <a class="right" href="{% url "scrobbles:finish" scrobble.uuid %}">Finish</a>{% else %}{{scrobble.timestamp|naturaltime}}{% endif %}</td>
+    <td><a href="{{scrobble.media_obj.get_absolute_url}}">{{scrobble.media_obj|truncatechars_html:50}}</a></td>
+    <td>{{scrobble.elapsed_time|natural_duration}}</td>
+</tr>