Translate key city growth routines to English.
More translation of simcity.cc and simcity.h -- also simplify code, use existing subroutines
Merge branch 'jp-devel-new' into pretty-cities
More translation and code cleanup in simcity.cc
Add building cluster number.  Store in "extra_data".
Modify storage mode for clusters information, change writer.  Implement clusters.
Behave responsibly -- add a 'getter' and use it
Compilation fix.  Buildings can now have "clusters=1,2" and will cluster with buildings which have "clusters=1" and "clusters=2".  Building clusters should now work!  Not tested yet.
Fix declarations in building_writer.cc
Tweak building clustering (make it stronger)
Tweak clustering factor again.
Merge branch 'jp-devel-fixes' into pretty-cities
FIX: Passenger generation, arrivals and departures from factories was not recorded properly.
Merge branch 'pretty-cities' of git://github.com/neroden/simutrans.git into 112.x-private-car-merge
FIX: Compile error
FIX: Trains would sometimes over-run signals when waypoints were in their route.
FIX: "Wait for load" did not work in very, very long games after a long period of time
CHANGE: Add recent industry parameters from Standard to simuconf.tab
CHANGE: Added an alternative mechanism for calculating congestion: see the notes in simuconf.tab for instructions on how to set it. It is based on the TomTom Congestion Index's method for recording congestion.
FIX: Properly calibrate old method of calculating congestion so as to avoid roundinge errors.
CHANGE: Add the ability to alter the congestion density factor in the advanced settings GUI
CHANGE: The congestion level is now affected by the traffic_level setting. This is intended to adjust for private vehicle occupancy.
CHANGE: Alter the calibration of the traffic_level setting to allow for more rounded mapping to average vehicle occupancy levels.
CHANGE: Implement new dud player removal for multi-player games in the simuconf.tab settings
CHANGE: Alter the passenger generation algorithm so that all journeys have return journeys: without this, there were significant anomalies and large towns would generate fewer passengers than small towns.
FIX: Make the calibration of mail levels more accurate (slightly more mail than before)
CHANGE: Remove internal anomalies in passenger generation. This means that the passenger_factor setting needs to be reduced to 1/3rd of its current level. Saved games with an Experimental version of less than 11 have their passenger facotr divided by 3.
CHANGE: The "level" of buildings is represented consistently.
CHANGE: Slight recalibration of passenger generation (slight reduction)
FIX: Traffic numbers were recorded incorrectly (too high).
FIX: Private car journey times were calculated incorrectly when assume_everywhere_connected_by_road was set to true.