Improve iCalendar feed to include tasks with start/end date and due date with a time

app/Core/Filter/QueryBuilder.php

@@ -20,6 +20,18 @@ class QueryBuilder
      */
     protected $query;
 
+    /**
+     * Create a new class instance
+     *
+     * @static
+     * @access public
+     * @return static
+     */
+    public static function create()
+    {
+        return new static();
+    }
+
     /**
      * Set the query
      *

app/Core/Helper.php

@@ -19,7 +19,6 @@ use Pimple\Container;
  * @property \Kanboard\Helper\FileHelper              $file
  * @property \Kanboard\Helper\FormHelper              $form
  * @property \Kanboard\Helper\HookHelper              $hook
- * @property \Kanboard\Helper\ICalHelper              $ical
  * @property \Kanboard\Helper\ModalHelper             $modal
  * @property \Kanboard\Helper\ModelHelper             $model
  * @property \Kanboard\Helper\SubtaskHelper           $subtask