adapt Container usage to new soko-web

src/Cli/AddOAuthClientCommand.php

@@ -1,7 +1,6 @@
 <?php namespace RVR\Cli;
 
 use DateTime;
-use SokoWeb\PersistentData\PersistentDataManager;
 use RVR\PersistentData\Model\OAuthClient;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputArgument;
@@ -33,8 +32,7 @@ class AddOAuthClientCommand extends Command
         }
 
         try {
-            $pdm = new PersistentDataManager();
-            $pdm->saveToDb($oAuthClient);
+            \Container::$persistentDataManager->saveToDb($oAuthClient);
         } catch (\Exception $e) {
             $output->writeln('<error>Adding OAuth client failed!</error>');
             $output->writeln('');