Improve user controllers and views

app/Controller/UserListController.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Kanboard\Controller;
+
+/**
+ * Class User List Controller
+ *
+ * @package Kanboard\Controller
+ * @author  Frederic Guillot
+ */
+class UserListController extends BaseController
+{
+    /**
+     * List all users
+     *
+     * @access public
+     */
+    public function show()
+    {
+        $paginator = $this->paginator
+            ->setUrl('UserListController', 'show')
+            ->setMax(30)
+            ->setOrder('username')
+            ->setQuery($this->user->getQuery())
+            ->calculate();
+
+        $this->response->html($this->helper->layout->app('user_list/show', array(
+            'title' => t('Users').' ('.$paginator->getTotal().')',
+            'paginator' => $paginator,
+        )));
+    }
+}