(svn r2257) - Fix: [NPF] NPF debug markings modify _map2 instead of _map3_hi for street tiles, corrupting them.
Some info got moved around in r1768 for street tiles, but NPF did not get updated.

(svn r2256) - Fix: Trains cannot find a depot when they are in a tunnel. (glx)
- Add: GetVehicleTrackdir() helper function.
- Codechange: Moved SortStruct from vehicle_gui.h to ttd.h, so the dependency from vehicle.h on vehicle_gui.h could be removed.
- Codechange: Typedeffed the VehicleTypes struct so it can be used as the type for Vehicle.type instead of "byte".
- Codechange: Removed prototype for VehicleSorter(), which had no implementation anymore and was never called.

(svn r2255) - Fix: [ 9680363 ] [NPF] Broken buoy handling for ships
Buoys will now try to get within 3 tiles of a buoy instead of a the actual buoy tile. This gets ships to got past buoys in a realistic (IMO) way instead of barging right through them.
- Fix: [NPF] Trains get curves penalties sometimes even when the track is straight.
- Add: [NPF] Ships get a penalty for going over buoys now, so they will try to go around.
- Add: [NPF] Ships get a penalty for curves too, yay for straight lines.
- Add: TrackdirToTrack(), TrackToTrackdir(), IsDiagonalTrack() and IsDiagonalTrackdir() helper functions.
- Add: IsBuoy() and IsBuoyTile() helper functions.
- Codechange: Rearranged part of the control flow of ShipController(), removing a goto.

(svn r2247) - Fix (regression): executing scripts now works (remove newline character(s)).
- Fix: getting help for an alias works
- Fix: '|' is an unprintable character, replace it with '\'

(svn r2243) -Fix: Rework of console. Use 'help command|variable' to get help about it. You can assign variables with =, ++, --, or just new value. Console parser is now lenient towards typed spaces, and more robust in general (at least readable). Removed the 'set' command, instead implemented all such variables as 'variables'.
- Some variables are really special and cannot be assigned normally, use their callback procedure for assignment/querying. This commit also obsoletes "[1172804] Console set command cleanup"

(svn r2239) -Fix [autoreplace]: [ 1185653 ] autoreplacing a dualheaded engine into a singleheaded engine is no longer a potiontial crash
It do have one side effect through. Now no engines are added/removed from the train anymore, so it produces "half dualheaded engines"
This will be fixed when autoreplace will get a major overhaul at a later date

(svn r2225) -Fix: split the endian-detection to target/host. Now cross-compiling
on i386-linux for MacOSX should also work for the language-files (strgen issues)

(svn r2222) Check the parameters of Cmd{Insert,Delete,Modify,Skip}Order() and CmdRestoreOrderIndex():
- Check if the vehicle exists
- Check if the vehicle belongs to the correct player
- Check if the new order is valid (type, destination, flags) (CmdInsertOrder)

(svn r2197) -fix [Makefile]: SDL_CONFIG from makefile.config is now not always overwritten
-fix [OSX]: fixed issue where OSX could not compile the java MIDI app if SHOW_WARNINGS was on (introduced in r1917)
-fix [OSX]: the midi class file is now also deleted with make clear

(svn r2196) -Change: updated the Makefile, now it works for crossplatform compiling
(and distcc compiling via Makefile.config). Wiki is coming up soon! Big
tnx to Bjarni and Lucaspiller.

(svn r2192) - Add greater control to the 'message options' window. Now you can turn off the telegraphc ticker sound for summarized messages, or turn off news-messages altogether (you get a red blot to notify you though). The [<][>] set the settings in one way, while clicking on the option itself, cycles it. This commit also 'fixes' bugs [1166973], [1121484] and patch [1169930].
- I also changed an order of strings from On, Off to Off, On, so this can be used ingame with the WWT_4 widget type.
- Since the newssettings now take 2 bits per setting (off/summary/on) _news_display_opt is widened to 32 bits and the settings code changed slightly to accomodate for a maximum of 16 message-types.

(svn r2189) Introduce and use IsCompatibleTrainStationTile()
This should prevent trains, which are longer than the station, to turn around without stopping under certain circumstances and fix speed limit for trains entering a station, when realistic accerlation is used

(svn r2182) - Add: [NPF] There is now a debug class for NPF. Use -d npf<level> to enable debugging printouts from npf.
- Codechange: [NPF] Removed NPF_MARKROUTE macro, to mark routes just specify a npf debugging level >= 1 on the commandline.

(svn r2181) - Add: DistanceTrack() to calculate the distance over optimally laid out tracks.
- Codechange: [NPF] Removed unused heuristic function NPFCalcTileHeuristic().
- Codechange: [NPF] Use DistanceTrack() instead of DistanceManhattan() for ship and train heuristic.
- Codechange: Renamed variables x and y to dx and dy in some of the distance calculation functions.

(svn r2176) Revise CheckOprhanedSlot():
- Don't assert the vehicle type, as it can be anything
- Don't touch the slot information of the vehicle, because it's possible that it is not a road vehicle anymore and even if it is, it has nothing to to with that slot
- Trim the debug printout, because the information about the vehicle is arbitrary
(Joint effort with Darkvater)

(svn r2167) -fix: [autoreplace] trains now get the default cargo type if the engine
replaced from did not have cargo capacity (instead of refitting to passengers)

(svn r2165) - Codechange: [NPF] Properly enummed NPF hash size, it is easily changable now.
- Codechange: [NPF] Improved the NPF hash calculation slightly.
- Codechange: [NPF] Increased hash size, should speed up somewhat.

(svn r2161) - Fix: When resizing a window, the button is also visibly depressed
- CodeChange: Use images as arrows in the scenario-date scroller, looks better
- Feature: Clicked buttons with images/text now visibly depress their contents when pressed (eg it really seems like the button is moving)
- Fix: Fix sprite offsets of the arrow sprites in openttd.grf