title: Correct "base path" terminology
body: <p>Consider a website installed in the 'mysite' directory:</p>
  
  <p><code>/var/www/html/mysite/index.php</code><br/>
  document root = <code>/var/www/html</code><br/>
  url = <code>www.mysite.com/mysite/index.php</code></p>
  
  <p>What would you call the following:</p>
  
  <ol>
  <li><strong>/var/www/html/mysite/</strong> index.php (Base path? Root path?)</li>
  <li>/var/www/html <strong>/mysite</strong> /index.php -or- www.mysite.com <strong>/mysite</strong> /index.php (Path? Base path?)</li>
  <li><strong>www.mysite.com/mysite</strong>/index.php (Base URL)</li>
  </ol>
  
  <p>I can't seem to come up with a clear cut name to distinguish 1 and 2. </p>