- tried to make 'restart' CCMD work again.

This requires quite a bit more thorough cleanup. I got it to the point where the titlepic appears after restarting, but it still crashes when starting the game so there's more data that needs to be cleaned up...

src/fragglescript/t_script.cpp

@@ -170,6 +170,7 @@ DFsScript::DFsScript()
 
 void DFsScript::Destroy()
 {
+	if (this == global_script) global_script = NULL;
 	ClearVariables(true);
 	ClearSections();
 	ClearChildren();