(svn r14104) -Feature: Add a window for waypoints, allowing to view all the trains having the selected waypoint in their orders.
Changing its name is also supported from the same new window.
Gui based on work done by Satyap, on FS#2025.

(svn r13626) -Fix (r11871): signals were not updated when player removed signals from nonexistent track sharing bits with existing track
So disallow removing signals from nonexistent track

(svn r13565) -Change [FS#2077]: when invisibility is set, sprite sequences are now drawn until first non-opaque sprite is found (bit 14 not set)
This is to balance performance, code complexity and NewGRF requirements

(svn r13251) -Codechange: rename _patches to _settings as that is more logic.
-Codechange: move all Settings into substructs of _settings in a way that they are logically grouped.

(svn r12342) -Fix(r12340): In order to avoid confusion, SIGN should be used for signs and SIGNAL for signals :)
Always check your terms with your nearest british ;)

(svn r12340) -Codechange: Remove some magic numbers (sprite IDs here) with some more meaningful values.
This allows to remove an unnecessary subtraction in the MAYBE_DAW_SIGNAL macro, who was waiting for an offset, at the first place.

(svn r12145) -Codechange: includes should be at the top of the source file
-Codechange: undefine a defined macro once work is finished, just in case

(svn r11910) -Fix: play 'ding-ding' crossing sound in more cases (except gameload and crossing construction)
-Fix: crossing sound is bound to tile, not to vehicle

(svn r11802) -Fix [FS#716]: do not crash trains when leaving depot to a very long track
-Codechange: use dedicated pathfinder for signal updating, resulting in better performance and possible future improvements

(svn r11760) -Codechange: unify the way how other end of a tunnel/bridge is determined at some places
-Fix: adding road/tram to tram/road bridge was cheaper by one tile

(svn r11657) -Fix: show better error message when trying to convert rail
-Codechange: merge DoConvert functions into one, make test and exec runs the same for tunnels/bridges

(svn r11533) -Codechange: Rename some unclear clear_x prices member names.
While at it, remove one unused entry on the clear_price_table array.
It is based on ground type, and the unused one was referencing a non existing one.

(svn r11433) -Fix: starting OpenTTD with DOS files made it look weird out of the box.
-Change: make extra sprites (the ones not in the TTD GRFs) replaceable using Action 5.
-Feature: make replacing contiguous subsets of sprites in for some types possible in Action 5.
Note to GRF authors: when you replaced OpenTTD sprites that are not from the TTD GRF files using Action A, your GRF will not have the intended result anymore as the sprite numbers have changed. You should replace the Action A with an Action 5 from now on.

(svn r11399) -Feature(ette): transparency settings can now be saved and thus remembered.
-Codechange: Wrap all transparency settings in accessors, hiding the implementation
-Change: Clicking "transparent building" menu will toggle Houses And Trees only. The other options can be used in the transparency gui.
Initial patch by Smatz (FS#1349), with some rework by BigBB and your humble servant.