Signed-off-by: keenanjohnson <keenan.johnson@gmail.com>

 - fixes #8563

Signed-off-by: CarlOlsson <carlolsson.co@gmail.com>

This should ensure that the home position / altitude is only being used when valid.

The change is effective immediately so no reboot is required. This makes the whole configuration a lot easier.

The change is effective immediately so no reboot is required. This makes the whole configuration a lot easier.

 - GPS and battery were publishing at > 800Hz

 - update to latest sitl_gazebo

thread for offboard publishers, add asserts for topics to come up (simulation ready) and set mode and arming, use home_position topic as better indicator of when the simulation is ready, add more feedback to rosinfo, make timeouts meaningful (in seconds), add land and extended state values