(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()

(svn r8301) -Codechange: Move the code relating to the sign list window from graph_gui.cpp to a file of its own: signs_gui.cpp.

(svn r8300) -Codechange: Add a prototype for DrawPlayerIcon to players.h and include that
instead of using externs. Also move DrawPlayerIcon from graph_gui.cpp to
players.cpp.