new feature: if set remote's CustomData to "waypoint", will use direction to the remote's currently *active* named waypoint target instead of gravity up direction for alignment
new feature: if set remote's CustomData to a GPS location string of format "XXX:YYY:ZZZ" will do similar but for a custom waypoint
note that it may be tricky to set up the remote oriented correctly for whatever purpose! ;) but it seems to work.

Ignores remote controls that are not functional, so you can now put multiple on same arm and grind all down but one to switch between them lol

minor edits to commentary, changed default maxRotation to 4 (was 5)

first public version