Rename the old simulator to oldsimulator to keep kiu working

sugar/Makefile.am

@@ -7,7 +7,7 @@ sugar_PYTHON =				\
 	env.py				\
 	logger.py			\
 	setup.py			\
-	simulator.py			\
+	oldsimulator.py			\
 	TracebackUtils.py		\
 	util.py
 

tests/simulator/bots/kiu.py

@@ -1,7 +1,7 @@
 #!/usr/bin/python
 
-from sugar.simulator import Bot
-from sugar.simulator import ShareActivityAction
+from sugar.oldsimulator import Bot
+from sugar.oldsimulator import ShareActivityAction
 from sugar.graphics.iconcolor import IconColor
 import os, random, gobject