Switch order so that IOP prefers Ligo Timing Card to old TDS system
An IOP that sees both a LIGO Timing Card and a Contect 16/16, which an indicator of the old TDS system, will now choose the LIGO Timing Card.
Note that there's still no way to run 1PPS with a contec1616 installed, and now no way to run either 1PPS or TDS with a LIGO timing card installed.