title: Regex for JkUnMount in Apache configuration file
body: <p>For example I have REST Api base path: <code>/rest-api/api/</code></p>
  <p>There are many APIs under it (e.g. <code>/rest-api/api/groups</code>, <code>/rest-api/api/groups/users</code>, <code>/rest-api/api/teams</code>, <code>/rest-api/api/games</code>, etc.)</p>
  <p>Now I want to unmount all the paths except ones starting with <code>/rest-api/api/groups</code>.</p>
  <p>I tried to write JKUnMount <code>/rest-api/api/(?!groups).*</code> but it does not work.</p>
  <p>I also tried with LocationMatch, but it did not work too.</p>
  <p>Is there an option that regex for my apache configuration is disabled? Or maybe I do smth wrong?</p>