Don't drop ui layers before entering the main loop. #2716

UIView::OnSwitchTo will take care of this for legacy views. If its here,
then we kill whatever UI we just set up before it even gets seen.
Complain if the number of stars in a (non-random) custom system is not correct.
Fixing thruster tags
Merge pull request #2720 from lwho/custom_check_num_stars

Check number of stars in custom system
Changelog for #2718/#2720
fix death view, forgot to setup draw transforms
Merge pull request #2721 from nozmajner/wave_fix

Fixing thruster tags, merging.
Update Changelog.txt