fix updated_at

app/app.ts

@@ -58,6 +58,7 @@ export class App {
     homepage: string;
     developers: { name: string, url: string }[];
     released_at: Date;
+    updated_at: Date;
     category: Category;
     parent?: App;
 
@@ -167,6 +168,7 @@ export class App {
         this.description = app.description;
         this.developers = app.developers;
         this.released_at = app.released_at;
+        this.updated_at = app.updated_at;
         this.author = app.author;
         this.homepage = app.homepage;
         this.category = Category[<string>app.category];

app/apps.service.ts

@@ -278,6 +278,9 @@ export class AppsService {
             if (app.released_at) {
                 app.released_at = new Date(app.released_at);
             }
+            if (app.updated_at) {
+                app.updated_at = new Date(app.updated_at);
+            }
             if (app.news) {
                 for (let item of app.news) {
                     item.updated_at = new Date(item.updated_at);