* WinDev/Lib/SYSTEM: fix bug of checking for 64 bit.
* WinDev/Lib/SYSTEM: cancel __attribute__((dllimport)) for DJGPP.
* WinDev/Lib/Console: #include <windows.h> => 'WinApi.h'.
* WinDev/Lib/C/GrPixel.c: remove two 'static' - need for DJGPP.
* WinDev/Lib/Bin: update build scripts.