Merge pull request #3 from nVitius/master

Output for commands

Author: nVitius

Command/Aws/Ec2/CopyImageCommand.php

@@ -70,5 +70,6 @@ protected function execute(InputInterface $input, OutputInterface $output)
         }
 
         $result = $client->copyImage($options);
+        $output->writeln($result->get('ImageId'));
     }
 }

Command/Aws/Ec2/CreateImageCommand.php

@@ -64,7 +64,6 @@ protected function execute(InputInterface $input, OutputInterface $output)
         $client = $this->getClient();
 
         $result = $client->createImage($options);
-
-        $output->wirteln($result);
+        $output->writeln($result->get('ImageId'));
     }
 }