- ecl in PX4/Firmware (fa1fbed24633aef7985a128ebd4d19a7f6a4d108): https://github.com/PX4/ecl/commit/c4492b17c1d7bb9b74011efa9890452b091421e8
    - ecl current upstream: https://github.com/PX4/ecl/commit/a27a43eafa8f4dd514e89984f5394260a36ea4f6
    - Changes: https://github.com/PX4/ecl/compare/c4492b17c1d7bb9b74011efa9890452b091421e8...a27a43eafa8f4dd514e89984f5394260a36ea4f6

a27a43e 2019-05-01 Hamish Willee - Fix up link to EKF docs
3f69189 2019-04-04 Mohammed Kabir - EKF: control: stop vision yaw fusion on timeout

There were multiple comments not addressed in pr #11904.
See commit 4bcb37f9bc9ef20b521ebcf33e7a0ed08fa86ccd

Auto mode traj - limit yaw setpoint rate of change when generated in the flight task instead of clamping the yaw rate in the controller

Move yaw setpoint slew rate from AutoLineSmoothVel to Auto. The slew rate is now applied consistently to all the auto FlightTasks

the first position when the oa fails as setpoint to avoid jumps

* match max vel in col-prev to regular pos ctrl
* change warning criterium to avoid float error
* disable push back from obstacles
* use floats consistently

Auto - Fix cruise speed. Tested with and without SDK. Before that commit, the drone files at max speed instead of cruise speed if not precised by the SDK

This fixes the issue where the  DO_CHANGE_SPEED command was ignored and
the drone always travelled at the MPC_XY_CRUISE velocity.

It wasn't possible to fly faster than cruise speed even if planned
in the mission.

Limiting the planned cruise speed is necessary because
the smoothed trajectory mission plans to the _mc_cruise_speed and
if that's higher than the maximum it gets capped for safety by the
position controller and the result is a jerky flight.

    - ecl in PX4/Firmware (aed3d80d5982f37e8353d6d07e29c79a9260b086): https://github.com/PX4/ecl/commit/f95cd4b3584d029c35b288a39180ddf25b2dd004
    - ecl current upstream: https://github.com/PX4/ecl/commit/c4492b17c1d7bb9b74011efa9890452b091421e8
    - Changes: https://github.com/PX4/ecl/compare/f95cd4b3584d029c35b288a39180ddf25b2dd004...c4492b17c1d7bb9b74011efa9890452b091421e8

    c4492b1 2019-04-09 Martina - do not reset yaw if vehicle on ground
14227ea 2019-04-08 Julian Oes - CMakeLists.txt: fix cmake warning
f97f0b6 2019-03-30 Paul Riseborough - EKF: Remove unnecessary code
43b5e26 2019-03-02 Paul Riseborough - EKF: Fix bug causing continual yaw reset when EKF2_MAG_TYPE = 2

 - needed for code coverage of python scripts

loiter mode since it's the failsafe mode

instance protected

updateAvoidanceSetpoints->updateAvoidanceDesiredSetpoints

to check progress

waypoints in FlightTasks. In obstacle avoidace library reset desired
avoidance waypoints after publication

    - ecl in PX4/Firmware (3a004d13dc13d81403ae3873d5109c0503a4f964): https://github.com/PX4/ecl/commit/a892ececf8490b21aa8917bc243b2bc441af6a87
    - ecl current upstream: https://github.com/PX4/ecl/commit/f95cd4b3584d029c35b288a39180ddf25b2dd004
    - Changes: https://github.com/PX4/ecl/compare/a892ececf8490b21aa8917bc243b2bc441af6a87...f95cd4b3584d029c35b288a39180ddf25b2dd004

    f95cd4b 2019-01-22 Roman - ground effect: removed dependency on local position
7845ff4 2019-01-23 CarlOlsson - EKF: increase wind process noise scaler to 0.5
32ca6f7 2018-10-24 CarlOlsson - ekf: scale wind process noise with low pass filtered height rate
938c8ad 2019-02-04 CarlOlsson - EKF: use hagl estimate if valid for when to trigger yaw reset on takeoff
8b4ae48 2019-03-05 Hamish Willee - README: Fix link to EKF/ECL tuning guide
f0889c1 2019-03-18 Carl Olsson - EKF: fixed some comment typos
6e77b19 2019-03-14 Todd Stellanova - Add DataValidatorGroup tests, add more DataValidator tests (#592)

using paramter_update.py script

This fixes the issue where the  DO_CHANGE_SPEED command was ignored and
the drone always travelled at the MPC_XY_CRUISE velocity.

velocity smoothing library to create a jerk-limited trajectory along the
Z axis. This FlightTask is used when MPC_POS_MODE = 3.