app directives (#439)

* pagination directive

* document list directive

* cleanup code

* cleanup code

* unified includeFields

src/app/components/page.component.spec.ts

@@ -29,7 +29,7 @@ class TestClass extends PageComponent {
     node: any;
 
     constructor() {
-        super(null, null, null);
+        super(null);
     }
 }