(svn r3670) -Codechange: [OSX] rewrote a part of the cocoa video driver to speed it up by 1000% in fullscreen
rewrote QZ_DrawScreen to only redraw dirty rectangles (instead of everything)
This reduce the OpenTTD time spent on this function from 75% to 6,7% (in main menu)
Note: window mode is unaffected by this commit
Note: the mouse pointer can now leave artefacts in debug mode

(svn r3669) Really wipe all data when making a void tile

Thanks to Belugas, egladil and Rubidium for their inspiration and hard work, which all this stuff is based on

(svn r3668) Add a function to turn a tile into a tree tile

(svn r3667) Fix the cause of an assertion I triggered in r3665

(svn r3666) Fix up svn properties and add header files to Windows project files.

(svn r3665) Add a function to turn a tile into a clear tile

(svn r3664) Add a function to turn a tile into a void tile

(svn r3663) - Fix: [Multistop] Check the status of the destination road stop instead of a station's first road stop. This only has effect with road vehicle queuing disabled.

(svn r3662) Fix regression FS#58 with union, endiannes and static decleration problems. Removed the union.

(svn r3661) -Fix [PPC computers] quick dirty fix for failure to start the game on BE CPUs
3626 broke the game on Big endian CPUs and this is a quick dirty fix
so the nightly builds for OSX and MorphOS will work again
the game will still fail on 64 bit BE CPUs
note: the game runs in 32 bit mode on G5, so it will work on G5
we need to make a better fix for this, but we also need the nightly builds to work