Add some debug messages

sugar/chat/Chat.py

@@ -244,6 +244,8 @@ class Chat(gtk.VBox):
 			return
 		if self._stream_writer:
 			self._stream_writer.write(self.serialize_message(text))
+		else:
+			print 'Cannot send message, there is no stream writer'
 		owner = PresenceService.get_instance().get_owner()
 		if owner:
 			self._insert_rich_message(owner, text)

sugar/chat/GroupChat.py

@@ -16,4 +16,5 @@ class GroupChat(Chat):
 		self._stream_writer = self._group_stream.new_writer()
 
 	def _group_recv_message(self, address, msg):
+		logging.debug('Group chat received from %s message %s' % (address, msg))
 		self.recv_message(msg)