Improve "Messages sent" formatting on /activity.

(imported from commit 891760c116d5a3290b49fb2d75eae0f0b227540d)

analytics/views.py

@@ -75,7 +75,7 @@ def get_realm_day_counts():
     result = {}
     for domain in counts:
         cnts = [counts[domain].get(age, 0) for age in reversed(range(8))]
-        cnts = ','.join(map(str, cnts))
+        cnts = ''.join('<td>%s</td>' % (cnt,) for cnt in cnts)
         result[domain] = dict(cnts=cnts)
 
     return result

templates/analytics/realm_summary_table.html

@@ -11,7 +11,7 @@
         <th>Bots</th>
         <th>Hours per user</th>
         <th>Hours</th>
-        <th>Messages sent</th>
+        <th colspan=8>Messages sent</th>
     </tr>
     </thead>
 
@@ -55,10 +55,11 @@
             </td>
 
             {# Messages sent #}
-            <td>
-                {{ row.history }}
-            </td>
-
+            {% if row.history %}
+                {{ row.history|safe }}
+            {% else %}
+                <td colspan=8></td>
+            {% endif %}
         </tr>
     {% endfor %}
     </tbody>