euscanwww: Watch/unwatch packages, categories, maintainers, overlays

Added a button for watch/unwatch and a dashboard with user selected
stuff only

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

euscanwww/djeuscan/templates/_base.html

@@ -56,6 +56,7 @@
                         <li><a href="{% url "accounts_herds" %}">Herds</a></li>
                         <li><a href="{% url "accounts_maintainers" %}">Maintainers</a></li>
                         <li><a href="{% url "accounts_packages" %}">Packages</a></li>
+                        <li><a href="{% url "accounts_overlays" %}">Overlays</a></li>
                       </ul>
                       <li><a href="{% url "django.contrib.auth.views.logout" %}">Logout</a></li>
                     {% else %}