Fix very annoying unit conversion bug related to vehicle comfort display.
Merge branch 'emergency-depot-bugfix' of git://github.com/neroden/simutrans.git into 112.x-private-car-merge
Fix subtle bug which prevented demo game from being loaded when simutrans was invoked from other than the "program_dir".
Eliminate inaccurate comments from dataobj/einstellungen.cc
Massive cleanup of walking time code.  Fixes several bugs (in destination walking, mostly).  Eliminates duplication of code.  Should be substantially faster than before.
Fix accounting-merger save/load code for certain savefile versions (& not others...)
Small comment and whitespace fixes.
Merge branch 'emergency-depot-bugfix' of git://github.com/neroden/simutrans.git into 112.x-private-car-merge
FIX: Compile error on Windows