message: fixed button showing up when not logged in
diff: <div class="row gap">
  <div class="col-sm-4 col-sm-push-8 text-center">
  <div>
  - <div class="create-dashboard-button btn btn-default btn-wide-2x" ng-click="ctrl.createDashboard()">
  + <div class="create-dashboard-button btn btn-default btn-wide-2x" ng-click="ctrl.createDashboard()" ng-show="ctrl.showAuthentication">
  <span class="fa fa-stack fa-lg">
  <span class="fa-circle-thin fa-stack-2x"></span>
  <span class="fa-plus fa-stack-1x"></span>
  