[templates] Add links to scrobbles

Ultimately these should probably be templated

vrobbler/templates/music/artist_detail.html

@@ -83,7 +83,7 @@
             <tbody>
                 {% for scrobble in object.scrobbles %}
                 <tr>
-                    <td>{{scrobble.local_timestamp}}</td>
+                    <td><a href={{scrobble.get_absolute_url}}>{{scrobble.local_timestamp}}</a></td>
                     <td><a href="{{scrobble.track.get_absolute_url}}">{{scrobble.track.title}}</a></td>
                     <td><a href="{{scrobble.track.primary_album.get_absolute_url}}">{{scrobble.track.primary_album.name}}</a></td>
                 </tr>