title: Troubles including Swiftmailer file after installation with composer
body: <p>I'm a newbie using composer and I'm having some troubles including Swiftmailer files in my public php page after installation.
  I installed Swiftmailer with composer using this instruction:</p>
  
  <pre><code>php composer.phar require swiftmailer/swiftmailer @stable
  </code></pre>
  
  <p>All works fine and file are installed in </p>
  
  <pre><code>./vendor/swiftmailer/swiftmailer/
  </code></pre>
  
  <p>Since files are in the root and not in public_html, I'm not able to include them in order to start using it.</p>
  
  <p>Did I do a mistake installing Swiftmailer in that position?
  Do I need to change it?
  If so is there a quick way?</p>