dl-fldigi 3.1

This version fixes issues with RTTY baud autoconfiguration and
squid proxies.

There is a corresponding server upgrade for this fix - so please
update before attempting to track a flight.

dl-fldigi 3.0

(not to be confused with fldigi version numbers which happen to also be 3.x.x)

version 3.20.29.r115

version 3.20.29.r114

version 3.20.16.r112

Update Makefile with new icon name

updated to r111

updated to revision 110