Use spaces suffix that replaces dots in username

This assumes usernames only have . or - but not both

src/views/appstore.js

@@ -18,6 +18,7 @@ angular.module('Application').controller('AppStoreController', ['$scope', '$loca
     $scope.searchString = '';
     $scope.validAppstoreAccount = false;
     $scope.appstoreConfig = null;
+    $scope.spacesSuffix = '';
 
     $scope.showView = function (view) {
         // wait for dialog to be fully closed to avoid modal behavior breakage when moving to a different view already
@@ -526,6 +527,8 @@ angular.module('Application').controller('AppStoreController', ['$scope', '$loca
     function init() {
         $scope.ready = false;
 
+        $scope.spacesSuffix = $scope.user.username.replace(/\./g, '-');
+
         getAppList(function (error, apps) {
             if (error) {
                 console.error(error);