attitude_estimator_ekf: auto detect mag declination using GPS coordinates
Merge branch 'master' into ekf_auto_mag_decl
mavlink app: Clean up allocations
Converted streams to new API, saving a bunch of RAM
mavlink app: Fix compile error
mavlink app: Finish porting all messages to new scheme
Merge branch 'master' into ekf_auto_mag_decl
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 branch 'master' into mavlink_stack
Merge pull request #1054 from PX4/hil_pos_sp

Enable global position setpoint over USB
MavlinkOrbSubscription API reworked
Merge branch 'master' into mavlink_stack
mavlink: sign of climb rate fixed in VFR_HUD message
Merge pull request #969 from PX4/mavlink_stack

Mavlink stack usage improvements
Merge pull request #928 from PX4/ekf_auto_mag_decl

attitude_estimator_ekf: auto detect mag declination using GPS