[hector_exploration_planner]
* More verbose comments
* target pose is always on z = 0
[hector_driving_aid_markers]
* Add node publishing aids for teleop control
[hector_exploration_planner]
* minor optimization in exploration transform array creation
[hector_exploration_planner]
* Refactoring of exploration transform creation
[hector_exploration_planner]
* Fix previous accidental change in behavior of exploration transform
[hector_exploration_planner]
* Fix wrong type specification
[hector_exploration_planner]
* Go backwards on trajectory to find inner frontier
* Rename some debug output
[hector_exploration_planner]
* refactoring exploration transform calc