title: Override 30 seconds timeout on gem class timeout
body: <p>My thin server is timing out after 30 seconds. I would like to override this ruby file.</p>
  
  <p>DEFAULT_TIMEOUT from 30 seconds to 120 seconds. how to do it? Please let me know. </p>
  
  <p>code is here: 
  <a href="https://github.com/macournoyer/thin/blob/master/lib/thin/server.rb" rel="nofollow">https://github.com/macournoyer/thin/blob/master/lib/thin/server.rb</a></p>
  
  <p>I would like to override without "already initialized constant" Warnings. </p>