changed relays on pdl,kdp,bbo back to None. having them be virtual was causing tracking to not work in a non-obvious way. updated REMPI POI
servers changed to import from config.serverURLS. updated close method to support sms that do not have an enable channel.
uncommented set-enable-status method for general use. still recommended to use toggle-status whenever feasible.
changed set tuned position to be buttons. functionality for eventually having pdl, kdp, and bbo be on relays is here in comments. be warned: as of writing using an enabled SM for kdp and bbo caused them to not be able to track. still not sure why.