(svn r8312) -Fix (r8038, sort of): Operating profit and the company value can be negative,
so don't put them in an unsigned variable before drawing them in the various
graphs. Although the code didn't change, this only seems to have broken since
we started compiling it as C++.

(svn r8311) [WinCE] -Fix r8304: GDI wasn't enabled by default on WinCE

(svn r8310) -Fix r8309: it is wise to put #endifs in the right place ;)

(svn r8309) [WinCE] -Fix: WinCE doesn't know resolution changing
-Fix: WinCE doesn't know GetKeyboardState
-Fix: made a replacement of GetCurrentDirectory, where CurDir is assumed to be the dir the executable is located (esoftinteractive.com)
-Fix: the GCC compiler is more happy if the WinMain is called that
-Fix: a really old typo (missing ')') ;)
-Fix: GdiFlush() isn't supported on WinCE

(svn r8308) [WinCE] -Revert r5764: in case of WinCE, use the code for FileExists as it was in pre-r5764 for Win32 (tnx Darkvater)

(svn r8307) [WinCE] -Fix: for now disable sound and music. That will be done later.

(svn r8306) [WinCE] -Fix: some functions don't exists in WinCE, so give an alternative where possible

(svn r8305) -Codechange: defining 'static const' in a header is a bit weird.
Above that, wince-gcc gave "unused variable" on every file which included airport.h... pretty annoying ;)

(svn r8304) [WinCE] -Add: added configure detection for WinCE.
Compiling doesn't work, neither does running, but it is a first step in developing an official WinCE port

(svn r8303) -Codechange (r8293): default is moved to the front of the switch in ShowVehicleListWindowLocal()