Dogfood

This is sort of a minor detail, but it would be nice to have the AN/DN mode function a little differently when your rocket is on the launch pad. If you want to RDV with something in an inclined orbit or just match its inclination, you can do your gravity turn at an angle other than 90 degrees, provided you launch when the launch pad is aligned with the AN or DN. So it would be nice if, while on the launch pad, AN/DN mode would calculate assuming you stay on the launch pad and rotate along with Kerbin. Great addon in general though, very useful.