(svn r703) Attempt to improve the town growth algorithm - now it scales over 76 houses, is slightly exponential and travels further for larger towns.
// stdafx.cpp : source file that includes just the standard includes
// ttd.pch will be the pre-compiled header
// stdafx.obj will contain the pre-compiled type information
#include "stdafx.h"
// TODO: reference any additional headers you need in STDAFX.H
// and not in this file