Add module names for the typedoc, make it work

Mark members with @private for typedoc.

tns-core-modules/data/virtual-array/virtual-array.d.ts

@@ -1,6 +1,9 @@
 /**
+ * @module "data/virtual-array"
+ * 
  * Contains the VirtualArray class, which is an advanced array like class that helps loading items on demand.
- */
+ */ /** */
+
 import * as observable from "../observable";
 import * as observableArray from "../observable-array";