sidemenu demo patch

app.js

.state('register', {
        url: "/register",
        templateUrl: "templates/register.html",
        controller: 'RegisterCtrl',
        onEnter: function ($state) {
          //$state.go('app.playlists');
        }
      })

controllers.js

.controller('RegisterCtrl', function ($scope,$state) {
    $scope.register = function () {
      $state.go('app.playlists');
    }
  })

register.html

<button ng-click="register()">Register</button>