Some much needed interface work on the media player

apps/media/ajax/api.php

apps/media/appinfo/app.php

apps/media/css/music.css

apps/media/css/player.css

apps/media/index.php

apps/media/js/collection.js

apps/media/js/music.js

apps/media/js/player.js

apps/media/js/playlist.js

apps/media/lib_collection.php

apps/media/templates/collection.php

apps/media/templates/music.php

apps/media/templates/playlist.php