ZVISION: Delete the render manager after the script manager on quit

This is necessary, as the script manager may include references to the
render manager, such as side effects in Zork: Nemesis. Fixes a crash on
engine exit when the current scene contains such effects

engines/zvision/zvision.cpp

@@ -127,8 +127,8 @@ ZVision::~ZVision() {
 	delete _cursorManager;
 	delete _stringManager;
 	delete _saveManager;
-	delete _renderManager;
 	delete _scriptManager;
+	delete _renderManager;	// should be deleted after the script manager
 	delete _rnd;
 	delete _midiManager;