Change in default MLAT loop behaviour to Dump1090
Change in default MLAT loop behaviour to Dump1090

Changes default configuratition of -mlatResultsFormat option to
prevent the automatic loopback of MLAT results into local Dump1090.
MLAT results now presented by default on port 31003 in Basestation
format only.
This helps prevent users running mulitple clients off a local Dump1090
instance inadvertently sending FlightAware calculated MLAT data to
other upstream clients which are unable to distinguish from ADS-B data.

cbgsy/piaware