Remove FakeBaseItem hack

[nielsvanvelzen]

The primary goal here was to remove the FakeBaseItem hack. Bunch of related sacrifices had to be made to complete this pentagram though.

Changes

• Split MusicFavoritesListFragment from ItemListFragment
  • Basically a glorified duplicate fragment class with obsolete code removed
• Add an extra to BrowseViewFragment to indicate it should show series timers instead of a fake base item
  • And some related changes in places that would crash if item is null
• Fix context menu showing for last selected base item when opening on gridbutton (e.g. music favorites button)
• Remove FakeBaseItem
• Dropped tears from eyes

Issues