Add additional handler for /PGCH/ch.
Add additional handler for /PGCH/ch.

Flack always appends "/ch", so add a handler for it.

ahelsing/geni-ch,tcmitchell/geni-ch,tcmitchell/geni-ch,ahelsing/geni-ch,MarshallBrinn/geni-ch,MarshallBrinn/geni-ch