title: webapp2 subdomain routing for any domain
body: <p>I want to setup a catchall subdomain routing system where the subdomain is the user's profile and the domain can be anything so it doesnt have to be set based on the server it is running on. </p>
  
  <p>what I have right now isnt routing I just tried to use a regex to catch everything after the subdomains.</p>
  
  <pre><code>routes.DomainRoute('&lt;subdomain&gt;.preset-sub.&lt;.*&gt;', [
                  webapp2.Route('/&lt;page_url:\w+&gt;', handler = SubHandler),
              ]),
  </code></pre>
  
  <p>so I want to be able to goto a page like username.preset-sub.localhost.com/ and have it be routed to that handler.</p>