Merge pull request #1028 from PX4/inav_gps_delay

position_estimator_inav: GPS delay compensation
fix initialization of perfcounters in fw att controllers
Merge pull request #1047 from PX4/fwattfixperfc

fix initialization of perfcounters in fw att controllers
Converted style to work with wiki. Cleaned up bad fields.
Merge pull request #1052 from achambers16/fw_att_control_params_cleanup

fw_att_control_params: Converted style for auto-generation
mavlink: report global position setpoint and do this always no just when updated, otherwise the values are not visible in QGC
mavlink: put update call back in
Merge pull request #1054 from PX4/hil_pos_sp

Enable global position setpoint over USB
Merge branch 'master' into follower