gt68xx_low.c. Used DBG instead of XDBG ing gt68xx_low.c. Minor manpage
fixes. Added man page links to other backends. gt68xx_low.h: Fixed
__FUNCTION__ bug on non-gcc compilers. Added more details about the BSDs in
the manpage. Fixed color order for ScanExpress A3 USB.
translation markers for all options. Added German translation for backend
options. Updated manpage and .desc file concerning scanner status. Added
untested flag for Mustek ScanEpress A3 USB and Lexmark X73.