New mix

some more minor changes.
- A3 PRO pin mappings for PWM were off i think. need jfitter to verify.
- NANOWII to use PE6 as AILR_IN instead of AUX_IN (so we can support all the *-2AIL modes)
- duckeron brakes to start at 1100us instead of 1000us
- safety checks for wing_mode