euscanwww: big commit

- fix commands
- import DataTables
- initial category view

Signed-off-by: Corentin Chary <corentincj@iksaif.net>

euscanwww/templates/euscan/categories.html

@@ -0,0 +1,21 @@
+{% extends "euscan/_datatable.html" %}
+
+{% load sub %}
+
+{% block content %}
+<h2>Categories</h2>
+<table id="table">
+  <thead>
+    <th>Category</th>
+    <th>Ebuilds</th>
+    <th>Unpackaged</th>
+  </thead>
+  {% for category in categories %}
+  <tr>
+    <td>{{ category.category }}</td>
+    <td>{{ category.n_packaged }}</td>
+    <td>{{ category.n_versions|sub:category.n_packaged }}</td>
+  </tr>
+  {% endfor %}
+</table>
+{% endblock %}