2008-06-15  Jonathan Matthew  <jonathan@d14n.org>

	* shell/rb-shell-player.c: (rb_shell_player_set_source_internal),
	(rb_shell_player_set_queue_source_internal),
	(rb_shell_player_get_playing_entry),
	(rb_shell_player_set_playing_entry),
	(rb_shell_player_play_order_update_cb),
	(rb_shell_player_do_previous), (rb_shell_player_do_next_internal),
	(rb_shell_player_playpause), (rb_shell_player_entry_activated_cb),
	(rb_shell_player_property_row_activated_cb),
	(actually_set_playing_source):
	* sources/rb-play-queue-source.c: (rb_play_queue_source_dispose),
	(rb_play_queue_source_class_init),
	(rb_play_queue_source_constructor),
	(rb_play_queue_source_get_property):
	* sources/rb-source.c: (rb_source_class_init),
	(rb_source_get_property):
	Allow the current playing source to provide its own play order,
	overriding the user's selected play order.  Rework some bits of the
	play queue code to use this.
	
	* rhythmdb/rhythmdb.h:
	Add #defines for cover art extra metadata items.

	* sources/rb-streaming-source.c:
	(rb_streaming_source_get_progress):
	Fix some tiny leaks.

	* plugins/audioscrobbler/Makefile.am:
	* plugins/audioscrobbler/audioscrobbler-ui.xml:
	* plugins/audioscrobbler/rb-lastfm-gst-src.c:
	* plugins/audioscrobbler/rb-lastfm-play-order.c:
	* plugins/audioscrobbler/rb-lastfm-play-order.h:
	* plugins/audioscrobbler/rb-lastfm-source.c:
	Massive rewrite for the ̇(not-so-̈̈) new streaming system, based on
	XSPF playlists containing ind̬ividual tracks.  No custom GStreamer
	source element required.  As the playlist entries can only be played
	once, and seemingly have to be played in order, use a play order that
	tries to enforce these restrictions.

	Fixes #518231, and consequently #373615, #451893, #462595, #466276,
	#500214, and #532399.

svn path=/trunk/; revision=5748