Change Activity so that subclasses don't have to call Activity superclass methods from the shell callbacks. Makes subclasses simpler since they don't (necessarily) have to care about OO concepts like superclasses right away.

examples/gmail.py

@@ -13,8 +13,6 @@ class GMailActivity(activity.Activity):
 		activity.Activity.__init__(self)
 	
 	def on_connected_to_shell(self):
-		activity.Activity.on_connected_to_shell(self)
-
 		profile_path = os.path.join(sugar.env.get_user_dir(), 'gmail')
 		geckoembed.set_profile_path(profile_path)
 		self.set_tab_text("Mail")
@@ -32,7 +30,6 @@ class GMailActivity(activity.Activity):
 		embed.load_address("http://www.gmail.com")
 		
 	def on_disconnected_from_shell(self):
-		activity.Activity.on_disconnected_from_shell()
 		gtk.main_quit()
 		
 activity = GMailActivity()