title: Use XML includes or config references in app.config to include other config files' settings
body: <p>I have standard logging, NHibernate, etc. configuration blocks in my <code>app.config</code> and I'd like to extract them into a common XML file that can be included as a reference by all of my applications' <code>app.config</code> files.</p>
  
  <p>Is this possible?</p>