title: CakePhp 3 - create new project
body: <p>I need to initiate a new app and the installer doesn't work.</p>
  
  <p>My php version : 5.6.25</p>
  
  <p>Composer is updated (in www folder)</p>
  
  <p>I tried (my folder app is www/product/app) : </p>
  
  <pre><code>php ../../composer.phar create-project --prefer-dist cakephp/app app
  </code></pre>
  
  <p>And I get this message:</p>
  
  <pre><code>[InvalidArgumentException]
  Could not find package cakephp\app with stability stable.
  </code></pre>
  
  <p>Any idea ?
  Thanks!</p>