libsaria: Shut down gstreamer on exit

This gives gstreamer a chance to clean up while exiting.

libsaria/__init__.py

@@ -58,6 +58,7 @@ def startup():
 
 def shutdown():
 	event.start("PREQUIT")
+	audio.shutdown()
 ##	import plugin
 ##	plugin.quit()
 	event.start("POSTQUIT")

libsaria/audio/__init__.py

@@ -12,6 +12,11 @@ audio_lock   = threading.Lock()
 lock_audio   = audio_lock.acquire
 unlock_audio = audio_lock.release
 
+def shutdown():
+	lock_audio()
+	pipeline.reset()
+	unlock_audio()
+
 def load_file(file):
 	lock_audio()
 	pipeline.load_file("file", file)

ocarina/__init__.py

@@ -18,8 +18,6 @@ def quit(window, event):
 	gtk.main_quit()
 	libsaria.shutdown()
 	print "Ocarina ran for:", uptime()
-	import threading
-	print "active threads?", threading.active_count()
 
 import window
 import playlist