(svn r7231) -Codechange: rename ini_get_variable to GetVariableAddress for use both in settings.c
and saveload.c

(svn r7195) -Feature: [FS#297, optional elrails] New patches/vehicles option 'disable electrified railways'.
(original patch by maedhros, ideas: peter1138, Darkvater, Rubidium, Patrick, Eddi|zuHause, ..)

(svn r7190) -Fix: If the non-player-based _patches setting was changed on the server during MP game, the callback function was:
1. Called only on the server but not on its clients.
2. Was called before the setting change occurred (usually with no effect)
3. Received old 'p1' argument value intead of new one
It could cause some MP desyncs in the future.

(svn r7179) -Codechange (r7173): Actually "prefer" team chat through the patch setting instead of
always sending to teammate if the patch is on even if you do not have any allies. So
with setting off you always send to 'all players', with setting on you send to teammates
if you have any, otherwise to all players.

(svn r7124) -Fix (r37xx): sizeof(bool) = 4 for (certain) OSX do not assume it is 1. This would break
the saving of certain values to the config. Thanks PandaMojo ford ebugging.

(svn r6758) -Feature: Add a measurement tool that will show dimensions and height
differences of various draggable tools (inspiration, concept and double
checking by MeusH).

(svn r6474) - Add a patch option to control display of liveries, allowing none, your
own, or all companies.

(svn r6450) -Feature: Make the 'patch' console command available for offline use and for
online use for player-based settings.

(svn r6381) -Cleanup: make the '/* */' comments that span multiple lines more uniform.
-Cleanup: whitespace alignment of a few tables.

(svn r6186) -Fix [FS#309]: add an override system to the dynamically determined size of steps for numeric patch settings in the 'Configure patches' GUI.
The size of these steps normally about (max - min) / 50, which results in steps of 100 000 years for the start year, end year, network restart year and the year of introduction of coloured newspapers.

(svn r6047) -Codechange: FOR_ALL now _only_ loops valid items, and skips invalid ones
-Codechange: use IsValidXXX where ever possible
Note: both changes to prepare for new pool system, which needs those changes.
For every pool there are 2 ugly lines, which will be removed when done
implementing new pool system.
Based on FS#13 by blathijs, partly implemented.

(svn r5999) -Feature: change the original date format to a 32 bits format based at the year 0.
The game date subsystem now allows someone to start in the year 0 and continue
up to the year 5 000 000. However, you currently cannot build anything before
1920 as there is no newgrf support for dates before 1920 or after 2090 yet.

(svn r5946) -Add: merged the TGP branch to mainline. TGP adds:
- New optional landscape generator (TerraGenesis Perlin)
- Load heightmaps (either BMP or PNG)
- Progress dialog while generating worlds (no longer a 'hanging' screen)
- New dialogs for NewGame, Create Scenario and Play Heightmap
- Easier to configure your landscape
- More things to configure (tree-placer, ..)
- Speedup of world generation
- New console command 'restart': restart the map EXACTLY as it was when you
first started it (needs a game made after or with this commit)
- New console command 'getseed': get the seed of your map and share it with
others (of course only works with generated maps)
- Many new, world generation related, things
- Many internal cleanups and rewrites
Many tnx to those people who helped making this:
Belugas, DaleStan, glx, KUDr, RichK67, Rubidium, and TrueLight (alfabetic)
Many tnx to those who helped testing:
Arnau, Bjarni, and tokai (alfabetic)
And to all other people who helped testing and sending comments / bugs
Stats: 673 lines changed, 3534 new lines, 79 new strings

(svn r5926) -Codechange: make _cur_year contain the full year, instead of the offset since 1920
-Codechange: store all year related variables that are _not_ stored in a savegame/transported over the network in the same format as _cur_year

(svn r5916) -Cleanup: use MIN_YEAR/MAX_YEAR for the year boundaries and BASE_YEAR when comparing _cur_year with a 'full' year.
-Cleanup: replace some magic '1920' values with BASE_YEAR.

(svn r5887) -Cleanup: move date related functions, defines and variables to date.[ch]
-Cleanup: fix whitespace related coding style issues in date.[ch]
-Cleanup: make original comments doxygen compatible and remove/change outdated comments

(svn r5136) Fix various style bugs:
- Trailing whitespace
- Trailing empty lines
- Missing newline at EOF
- Missing svn:eol-style native

(svn r4445) -Fix: FS#108 Danish name generator bug
this was actually not a bug in the generator, but rather it saved/loaded the setting danish as swiss (the previous in the list)

(svn r4342) Change the first two parameters of commands - virtual pixel coordinates of the tile to operate on - to a TileIndex
Remove DoCommandByTile(), because now it does the same as DoCommand()

(svn r4126) - Feature: A new multi-lingual multi-measuring-unit system:
- Replace miles/kilometres game option with a general measuring units option.
- Add {POWER}, {WEIGHT}, {WEIGHT_S} and {VOLUME_S} (_S for short) tags to the language/string system.
- Add SI as option for measuring units.
Language file updates to use the system will come soon.

(svn r3895) - Add proper SLE(G)_CONDNULL macros for the empty space reservation in savegames and update where used
- Also add this capability to settings

(svn r3875) - [Patches] Fix up the intro menu so the right values for the mapsize are shown (the default ones). Setting the value involves a small hack in that we also set the _patches value because that is used for world-generation and only inside there do the values get copied from _newgame
- [Patches] Fix a stupid, stupid bug where I used sizeof() as length instead of strlen() in getting console values for patches.

(svn r3746) - [7/7] Moving the callback functions for the setting-changes from settings_gui.c to settings.c. Also enable the callback functionality through the console.
- Fix a nasty bug with improper counter addition. (*i)++ and NOT *i++ when setting a patch value through the console.

(svn r3732) - Fix two warnings. Stupid MSVC didn't even complain :s (Thank Tron and peter1138)
- NOTE! There are a few warnings left in settings_gui because tha callback functions are disabled. I still need a good place for them.

(svn r3726) - [6/6] Finalize conversion, finally save the patches struct.
- Remove the temporary synchronisation in during the map-transfer as this is no longer needed
- The saved patches work just like the saved gameoptions. You have a _patches and a _patches_newgame struct. The _patches_newgame struct contains the values from the configuration file and thus the defaults for new games. When a new game is started or an older game is loaded, the default values are copied over to _patches to be used. When you load a game that has PATS saved, the default values are also loaded, but immediately overwritten by the values from the savegame. This ensures that player-based values are always taken from your personal preferences.
- The current implementation also changes the default values if you change player-based settings in the game. For example changing window_snap_radius in a certain game will also change it for all next OpenTTD sessions.
- The savegame version has been increased to 22.
- The last 6 orso patches close the following reports:
[ 1366446 ] different names for patches: all patch settings have the same name as in the configuration file and are reachable from the console.
[ 1288024 ] Strange string on OTTD initial screen: configuration (and this includes patches) inputs are validated and clamped to their minimum/maximum values.
[ 1423198 ] Make "Signals on Drive side" player, not server, based: this is only visual so current setting is to save it with the savegame but not synchronise in multiplayer.
[ 1208070 ] Patches and New GRF options saved: apart from newgrf this is done

(svn r3723) - [5/6] Move over the console commands from settings_gui to settings where they rather belong.
- Remove the restriction that the 'patch' console command can only be run from network games.

(svn r3722) - [4/4] Present the game with a unified structure for the configuration-ini, saveload, console and gui representations of the settings. The last part finishes the transition with the merging of the settings_gui table(s).
- Because patches are (will be in a few commits) saved, you cannot specify the order of the GUI-items in the SettingDesc tables themselves. Doing so would mean messing around with the savegame-version, or doing expensive lookups. So the GUI-tables are now just simple indeces into the original table. No more is needed since that table contains all information
- The only change in functionality is that the stepsize has been automated. It is calculated from the minimum and maximum values such that within 50 clicks you will have gone from one end to the other if scrolling.
- The GUI has kept its flags intact. These are:
SGF_0ISDISABLED: the variable might have a domain higher than zero, but a special value of nul is used as telling that feature is disabled.
SGF_NOCOMMA: represent the number without any thousand-seperators
SGF_MULTISTRING: internally the variable is a number, but its representation is a string based on a simple offset.
SGF_NETWORK_ONLY: this setting can only be changed during network games
SGF_CURRENCY: the variable represents money and will be shown in the local currency
- - NOTE! The game is not compilable after this commit (because console hooks have not been updated)