Actually Throttle warning was not ticked by default in companion, and if
ticked, it was disabled, and when not ticked it was enabled.
Now it fits to the real firmware settings.
based on current next branch, includes all changes from old
ThrottleWarning branch.
Solves issue 020: Throttle warning if P1-P3 is selected as Thr source.
Adds Turnigy TransmitterFix option
code savings:
120 bytes without Transmitter fix
4 bytes but 1 more data if Transmitter Fix is activated.
Added make option TURNIGY_TRANSMITTER_FIX for this purpose
TURNIGY_TRANSMITTER_FIX = NO is default
set to YES for new Turnigy9x transmitter which transmits even no pulses
are generated.