Merge branch 'daregger_rate_control' of github.com:PX4/Firmware into calibration

apps/ardrone_interface/ardrone_interface.c

apps/attitude_estimator_ekf/attitude_estimator_ekf_main.c

apps/attitude_estimator_ekf/attitude_estimator_ekf_params.c

apps/attitude_estimator_ekf/codegen/attitudeKalmanfilter.c

apps/commander/commander.c

apps/mavlink/mavlink.c

apps/mavlink/mavlink_receiver.c

apps/mavlink/orb_listener.c

apps/multirotor_att_control/multirotor_att_control_main.c

apps/multirotor_att_control/multirotor_attitude_control.c

apps/multirotor_att_control/multirotor_rate_control.c

apps/sensors/sensors.cpp

mavlink/include/mavlink/v1.0/ardupilotmega/ardupilotmega.h

mavlink/include/mavlink/v1.0/ardupilotmega/version.h

mavlink/include/mavlink/v1.0/common/common.h

.../include/mavlink/v1.0/common/mavlink_msg_battery_status.h

...k/include/mavlink/v1.0/common/mavlink_msg_setpoint_6dof.h

...k/include/mavlink/v1.0/common/mavlink_msg_setpoint_8dof.h

mavlink/include/mavlink/v1.0/common/testsuite.h

mavlink/include/mavlink/v1.0/common/version.h