/**
* Resets array of errors and appropriate data.
* Additionally persistent storage will be cleaned
* too.
*
* @param null
* @return null
*/
static function flushErrors()
{
$storage = Storage::createWithSession("post_errors");
$storage->un_set('errors');
$storage->un_set('data');
self::$errors = array();
self::$post_data = array();
}
