admin: Fix reactivating bot users.

Because the `owner` field had the class email, we were sending the
concatination of the user and owner email addresses as the email
address in the reactivate requests.

Fixes #243.

static/js/admin.js

@@ -151,7 +151,7 @@ exports.setup_page = function () {
 
         var email = $(".active_user_row").find('.email').text();
         channel.post({
-            url: '/json/users/' + $(".active_user_row").find('.email').text() + "/reactivate",
+            url: '/json/users/' + email + "/reactivate",
             error: function (xhr, error_type) {
                 if (xhr.status.toString().charAt(0) === "4") {
                     $(".active_user_row button").closest("td").html(

static/templates/admin_user_list.handlebars

@@ -8,7 +8,7 @@
   </td>
   {{#if is_bot}}
     <td>
-      <span class="email">{{bot_owner}}</span>
+      <span class="owner">{{bot_owner}}</span>
     </td>
   {{/if}}
   <td>