Copter: don't stop logging on disarm when LOG_WHEN_DISARMED is set
AHRS: add reset_gyro_drift method
Copter: reset ahrs gyro drift after gyro calibration
GPS: use primary for Notification
GPS: init primary_instance to zero
AP_AHRS : Add reset of EKF gyro bias states
AP_NavEKF : Add public method to reset gyro bias states
Copter: fail to arm if gyro cal fails
Copter: re-enable CPU failsafe if arming fails
Copter: return false when arming fails
AP_NavEKF : add INIT_GYRO_BIAS_UNCERTAINTY definition
Copter: update AC3.2-rc14 ReleaseNotes
Copter: minor update to AC3.2-rc14 ReleaseNotes
Merge remote-tracking branch 'diydrones/ArduCopter-3.2' into
ArduCopter-3.2