AP_HAL_FLYMAPLE: added documentation about safety of noInterrupts()/interrupts()
AP_InertialSensor: fix orientation of Flymaple sensors
AP_HAL_FLYMAPLE: Console is now a thin wrapper around uartA, consistent with AVR
AP_InertialSensor: Further Flymaple orientation fixes
AP_InertialSensor: Final Flymaple orientation fixes
AP_HAL_FLYMAPLE: UARTDriver now has correct implementation of txspace that looks at HardwareSerial ring buffer
build: added flymaple-upload target