public function install()
{
$admin = array('name' => 'Administrator', 'slug' => 'admin', 'description' => 'Administration group', 'is_core' => '1');
$admin = Groups\Model\Group::create($admin);
$users = array('name' => 'Users', 'slug' => 'users', 'description' => 'Basic users group', 'is_core' => '1');
$users = Groups\Model\Group::create($users);
}
