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/category.html

@@ -29,6 +29,8 @@
   {% endif %}
 </h2>
 
+<p><em>{{ category.description }}</em></p>
+
 {% packages packages %}
 
 <h3>Statistics</h3>