- ulog file message rate limited to 50Hz
- queuing with size 2
- this replaces the mavlink log message in the ulog
  (but the mavlink warnings & errors still go to the ulog)

- also add log file to the status output

- there is no way to change it at runtime
- it was implemented wrong (<= comparison disabled the PANIC log level)

The tool jps does not seem to be available on macos Java.

* Helicopter aiframe and basic PID control

* codestyle

* Blade 130x gains working but not optimal

* Changed behaviour of feedforward for all multicopter

- Fix if _retries variable is not set to prevent "UINT_MAX-1"
  retries.
- Update for the cmake_hexagon submodule.

QGC failed to calibrate RC with the old range.

* Low impact changes from path_cleanup branch.

This is a step towards minimizing the diff with path_cleanup branch.

* Update ecl.

* Revert matrix update.

* Revert ecl and matrix.

* Update sitl gazebo.

* Revert sitl_gazebo and matrix changes.

This parameter, when enabled, enforces that the UAVCAN ESC driver never outputs zero throttle
while the system is armed. This feature is disabled by default, so the change will not break
the experience of current users.

extended in two ways: target specification and tool selection.