- 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.

Corrected HEX_T position and rotation for motors 1-2-5-6

Update and rename greenkoptr.main to greenkoptr.main.mix

Create greenkoptr.aux.mix

Update greenkoptr.main.mix

Rename gk to 13011_greenkoptr

Update 13011_greenkoptr