(svn r8978) -Feature: Rewrite of transfer system.
This major feature-fix keeps track of the value of transfers offloaded at a station, and hands on to a loading vehicle a credit note proportionate to the cargo loaded. The transferring vehicle is paid only for the distance it has travelled. eg. B-C in a transfer chain A-B-C-D.
When the final cargo is delivered, these credit notes are cashed, and the final vehicle is paid for A-D minus any credit notes it is carrying. The company bank balance increases by the value of the A-D route.
You still need to set up a profitable route; it is still easy to make a loss on transfers by bad planning. :)

(svn r8876) -Fix

Replace tests with magic numbers by a simple extraction template for command parameters

(svn r8875) -Fix

Remove unnecessary EnsureNoVehicle() checks because they are
- pointless per se (f.e. there are no vehicles on house tiles)
- done again (f.e. using CMD_LANDSCAPE_CLEAR just a few lines later)

(svn r8852) -Fix (r8735): make the dynamite tool for drive through road stops as if it were removing a normal road tile (consider the local authority and such).
-Fix (r8735): remove drive through road stops on town owned roads when going bankrupt/being removed.

(svn r8841) -Fix

Remove {,u}intswap() and replace them by Swap()

(svn r8833) -Fix

-Codechange: Split MakeRoadStop() into MakeRoadStop() and MakeDriveThroughRoadStop() for more clarity and less possibilities to use it incorrect

(svn r8828) -Fix

-Regression (r7585): On load calculate the station rectangle for all savegames, not just savegames with at least version 27

(svn r8822) -Fix

Variable scope, const

(svn r8800) -Fix

Simplify MoveGoodsToSation() under the assumption that 0 is less or equal than 0

(svn r8799) -Fix

Reduce variable scope

(svn r8796) -Fix

Remove the unused function AllocateStation() which was left over from r8125

(svn r8794) -Fix

Remove the possiblity to take over stations with OWNER_NONE by building a station next to it
-Fix: It was possible to take over buoys by building a station next to them
Also remove the now unnecessary special case which prevented taking over oilrigs
NOTE: 0.5 candidate

(svn r8782) -Fix

Adapt GetClosestStationFromTile() more to the way it is used:
- All but deleted stations get filtered later, so do not include non-deleted station in the first place
- Remove the two parameters, which are the same for all callers

(svn r8781) -Fix

A spectator cannot build stations, so do not include a special case for him

(svn r8779) -Fix

-Codechange: Use a more generic test, which tests the allowed aircraft instead of hardcoding the airport type numbers, to generate station names

(svn r8767) -Fix

-Codechange: Do not hardcode the catchment radius of airports, but hold the information in AirportFTAClass
-Fix (r979): The default AI tested possible airport locations with a fixed catchment radius instead of the radius of the to be built airport

(svn r8755) -Fix

Abbreviate GetAirport(st->airport_type) to st->Airport()

(svn r8539) -Fix

static

(svn r8531) -Fix

Remove unnecessary pointer mumbo-jumbo from FindRoadStopSpot()

(svn r8499) -Fix

-Fix (?): When removing an oil rig replace the station tile by water, not bare land

(svn r8477) -Fix

-Codechange: Remove the unnecessary attributes Station::{bus,lorry}_tile_obsolete by replacing them with a scan of the map for existing road stops when loading old savegames

(svn r8476) -Fix

Remove the unused remnants of {bus,truck}_stop_status_obsolete
(though I wonder a bit why this information doesn't get converted on load *shrug*)

(svn r8475) -Fix

Remove the unused remnants of blocked_months_obsolete

(svn r8474) -Fix

Turn GetPrimaryRoadStop() into a method of struct Station

(svn r8449) -Fix

-Codechange: Remove the superfluous attribute RoadStop::prev

(svn r8414) -Codechange: Use own AutoPtrT instead of std::auto_ptr.
-Simplifies assignment from raw pointers
-Should be harder to crash the program by incorrect assignment into it.
-Should help with MorphOS compilation errors

(svn r8400) -Fix

Simplify r8399

(svn r8212) -Fix

Remove the unnecessary attribute RoadStop::used. The same information can be derived from RoadStop::xy

(svn r8207) -Fix

Remove the write-only attribute RoadStop::station

(svn r8128) -Codechange: Split sprite and palette remap into separate 32 bit values.
This lets us increase the sprite width from 14 to up to 29 bits,
effectively nulling the old sprite limit. Table changes in next commit.