Fixed problem with a new level colliding with old level on level reset.
Fixed problem with a new level colliding with old level on level reset.

file:a/Level.cpp -> file:b/Level.cpp
--- a/Level.cpp
+++ b/Level.cpp
@@ -26,6 +26,8 @@
     }
 
   _objects.clear();
+
+  _bullet->updateCollisionObjects();
 }
 
 ISceneManager* Level::sceneManager()