MAV visits the root too
visualization tweaks
Merge branch 'master' of http://github.com/asadat/nuc

Conflicts:
	launch/sim_param.yaml
Merge branch 'master' of http://github.com/asadat/nuc

Conflicts:
	launch/sim_param.yaml
	src/HilbertStrategy.cpp
Merge branch 'master' of http://github.com/asadat/nuc
fix visualization changes