Fix blind rotation in portrait mode
add missing material
StartLevel delay implemented
Fix infodisplay
clean up Ai code
"Fixed" handling of baddy Xbox controllers

This isn't great, but it does at least ensure:

* Player is always on controller 1, unless controller 1 dies. Then next up.
* Baddies will always be controlled by Xbox controllers.
* If controller isn't available, AI takes over for Baddies.
* Player can be keyboard controlled if no controllers present. All baddies will be AI.
fix facing direction bug