fix relative path for logout action

          <a href="#connect" class="nav-item nav-link hidden-xs"><i class="fa fa-plug"></i></a>

        </li>

        <li>

          <form action="/auth/logout" method="POST" ng-show="username">

          <form action="auth/logout" method="POST" ng-show="username">

            <button class="btn btn-lg btn-link" type="submit">

              <i class="fa fa-power-off"></i>

            </button>