Display owners for bots on the admin page.

(imported from commit d1a80ab8f784ab7e7249cc020b1980bd45434abd)

static/templates/admin_user_list.handlebars

@@ -6,6 +6,11 @@
   <td>
       <span class="email">{{email}}</span>
   </td>
+  {{#if is_bot}}
+  <td>
+      <span class="email">{{bot_owner}}</span>
+  </td>
+  {{/if}}
   <td>
   {{#if is_active}}
       <button class="btn deactivate btn-danger">

templates/zerver/administration.html

@@ -17,6 +17,7 @@
         <tbody id="admin_bots_table" class="admin_user_table">
           <th>Name</th>
           <th>Email</th>
+          <th>Owner</th>
           <th>Actions</th>
         </tbody>
       </table>