added kill_throttle again, is needed because the kill button in the GCS is connected to the kill_throttle setting
rotorcraft: make it the default to go into kill mode until ahrs is aligned
to be able to change the mode via RC if the AHRS is not yet aligned, define AUTOPILOT_DISABLE_AHRS_KILL
rotorcraft AUTOPILOT_ARMING_THROTTLE: added a small counter/delay for arming/unarming via throttle
added lisa_m_2.0 header file and some ADC defines and corrections for lisa/m
rotorcraft arming: also prevent switching motors on via settings/GCS if AHRS is not aligned (unless AUTOPILOT_DISABLE_AHRS_KILL is defined)
Make bat_checker configurable via airframe file
cleaning uart_arch
only disable i2c interrupts
add stop/resume functions to spi fifo
fix spi resume logic
make imu_b2 very clean and simple, but still crashing...
minor updates for fraser airframe
fix spi driver for resume function
fix max1168 driver (spi lock called using callback function)
cleaning of spi and imu_b2 related files
rotorcraft vertical guidance: set altitude setpoint on hover mode entry, also set vert speed setpoint to zero when entering climb mode
GUIDANCE_V_GAIN_SCALER Caused overflow in vertical d and i gain
rotorcraft INS: fix ins_ltp_accel.z if VFF is not used or baro not running
rotorcraft vertical guidance: when INV_M is defined, use FF_CMD_FRAC instead of GV_ADAPT_X_FRAC to convert to BFP representation
no functional change, as both are 18 right now anyway
spi driver with pointers for IO buffers + fix for LPC