Added ArtistMenu that lists all artists.
Added AlbumMenu, listing all albums on the device
Changed some classes names to follow new project structure naming convention - GeneralSpecificExact
Added a read Settings screen, based on a preferences.xml
Abstracted away the apps settings from SharedPreferences into a custom class Settings
Added full support for Themes - user can change them at Settings menu and it gets refreshed through all the application
Made the MusicService start along with the application, on kMP
Documented a few things and removed unnecessary code