title: Symfony: There are no commands defined in the "ckeditor" namespace
body: <p>I have the following error when i try to install the IvoryCKEditorBundle</p>
  
  <pre><code>php bin/console ckeditor:install
  
  [Symfony\Component\Console\Exception\CommandNotFoundException]
  There are no commands defined in the "ckeditor" namespace.
  </code></pre>
  
  <p>composer.json: </p>
  
  <pre><code>"require": {
          "php": "&gt;=5.5.9",
          "egeloen/ckeditor-bundle": "^4.0",
          "symfony/symfony": "3.3.*",
           //....
  </code></pre>