static function activate()
 {
     if (!current_user_can('activate_plugins')) {
         return "You cannot activate it";
     }
     return Birthdays_Widget_Installer::install();
 }
function update_birthdays_widget()
{
    $birthdays_settings = get_option('birthdays_settings');
    $birthdays_settings = maybe_unserialize($birthdays_settings);
    if (!isset($birthdays_settings['version']) || $birthdays_settings['version'] != BW) {
        Birthdays_Widget_Installer::install();
        $birthdays_settings = get_option('birthdays_settings');
        $birthdays_settings = maybe_unserialize($birthdays_settings);
    }
}