Detect channel, only detect Channel PIDIV for RS origin (only really
care about method1/2/4 being used when it shouldn't)
Channel does this weird thing called not setting the met level.
Refactor set suggested met location to a method that can suppress
popups.
Rewrote showdown set exporting to be much clearer, added auto-fixing of
relearn moves when importing showdown set (applies suggested relearn
moves)
Simplified main form loading routine (from ~160 to ~25 by extracting
methods)
