MediaViewController: Fixed Select-All button bug in the ArtistAlbumCategoryViewController

This merge fixes a minor UI issue of editing mode. When the user navigates to a controller of type ArtistAlbumCategoryViewController and presses select from the menu bar button, the Select-All button does not appear instead it shows a navigation back button. This produces unexpected behavior when the back button is pressed and makes the editing toolbar and mode active, it is not removed until the done button is pressed.

Select-All Bug Video	Fixed Select-All Bug Video
SelectAll_Issue	SelectAll_Fixed