euscanwww: Added category description, overlay description, homepage and path

Minor changes:
- Fixed broken tests (alive field was still there)
- Added plural to Category model

Signed-off-by: volpino <fox91@anche.no>

euscanwww/djeuscan/templates/euscan/overlay.html

@@ -19,6 +19,9 @@
 
 </h2>
 
+<p><em>{{ overlay.description }}</em></p>
+<p><a target="_blank" href="{{ overlay.homepage }}">Homepage</a></p>
+
 {% packages packages %}
 
 <script src="{{ STATIC_URL }}js/favourite.js" type="text/javascript"></script>