Plan.Engine: Changed parameter name.
BottomTracker: Allowing obstacle avoidance during depth control.
BottomTracker: Avoiding state must take into account forced altitude tracking.
Merged with branch master.
Control.PathController: Added bottom tracker's admissible depth to the task's arguments.
BottomTracker: Going back to depth control when reference is sane again.
Depth and LimitDepth states were switched at some point.
Added missing string for LimitDepth state.
BottomTracker: Moved the handling of safety measures into a separate function.
BottomTracker: Ignoring DEPTH state if avoidance during depth control is disabled.
AUV.Control: Added recently added parameters for bottom tracker.
Merge branch 'master' into feature/depth_avoidance

Conflicts:
	etc/auv/control.ini
	src/DUNE/Control/BottomTracker.cpp
AUV.Control: Disabling depth avoidance in bottom tracker by default.
Merge branch 'feature/depth_avoidance'