Initialize publishers on loading of interface in order to ensure that messages are really sent (publishers otherwise need some sleeping time to work properly)

Add new roi_visualization node to launch file

See merge request !24

Dev/unused qt5 disabled

See merge request !23

explore_lite commented out bc of being part of experimental package, not available as dependency on build farm

Added more const and calls by const reference where applicable; Added TODO file because of Qt dependency

Added c++14 support and use of unique_ptr instead of raw pointer for HyperParticleFilter attribute in slam node