Mission Planner 1.2.12

add arduino chip detect
fix apm2,2.5 dialog test
add write timeout. this will stop planner hangs on bad serial devices.
change quickview decimal places to 0.00
fix map clicking issue.
fix wind direction wrapping
add airspeed use
modify firmware screen from Marooned
major flightdata tab change.
add save/load polygon from file
add some error handling dialogs