Fixed: parameter type has been changed in simgraph.h but not here.
Fixed: missing changes since number of threads selectable in simuconf.tab
Changed: remove pointers from fields departures and average_journey_times.
Changed: arrival time estimation based on route infos.
Merge branch '112.5-merge' of git://github.com/BerndGabriel/simutrans-experimental.git into 112.5-merge
CODE: Slight layout changes in simuconf.tab