public function run()
 {
     DB::table('groups')->truncate();
     $admin = Sentry::createGroup(array('name' => 'Manager', 'permissions' => []));
     $staff = Sentry::createGroup(array('name' => 'Store Manager', 'permissions' => []));
     $staff = Sentry::createGroup(array('name' => 'Sales Person', 'permissions' => []));
     \Mualnuam\Permission::revoke();
 }
 public function revokePermission()
 {
     $permissions = \Mualnuam\Permission::revoke();
     return View::make('users.revoke', compact('permissions'));
 }