Kraken: fix initialization of VisitorFinalJppAndDate
Kraken: translation of borne to bound
Kraken: clear of raptor: reinitialize variable
Merge pull request #371 from l-vincent-l/fix_init_raptor_solution_visitor

Kraken: fix initialization of VisitorFinalJppAndDate
Kraken: don't pass data to clear
Merge pull request #373 from l-vincent-l/small_improvement_on_clear

Small improvement on clear
Kraken: fix of clear, was using wrong vector to init  Q
Merge pull request #374 from l-vincent-l/fix_size_of_Q

Kraken: fix of clear, was using wrong vector to init  Q
Kraken: factorize marking of jpp of a same stop_point
Kraken: in foot_path rename current_labels in working_labels

For coherence sake
Kraken: remove check of accessibility in foot_path

Since we don't stop on a journey_pattern_point we don't really care about
accessibility here, it'll be check in the public transport part
Kraken: compute best_jpp_per_sp during public transport part
Kraken: Fix and translate comment for best_jpp_by_sp