fixed bouncing balls example

examples/bouncingballs/python/make.bat

@@ -1 +1,2 @@
-python -m sccd.compiler.sccdc -p eventloop -l python -o target_py\target.py sccd.xml
+python -m sccd.compiler.sccdc -p eventloop -l python -o target_py\target.py sccd.xml
+python -m sccd.compiler.sccdc -p eventloop -l python -o target_py\multiwindow.py sccd_multiwindow.xml

examples/bouncingballs/python/runner_bouncing.py

@@ -5,7 +5,7 @@ Created on 27-jul.-2014
 '''
 
 import Tkinter as tk
-import target_py.bouncing as target
+import target_py.multiwindow as target
 from sccd.runtime.statecharts_core import Event
 from sccd.runtime.tkinter_eventloop import *
 from widget import Widget