Some logging callback updates and way for logging widechar buffers
Changed logging callback system to set default when registering NULL for callback and to turn off one should use LOG_OFF
Fixed a error where logging callback could be set to NULL and added some explaining comments.
Use NULL where NULL is meant
Change lou_logPrint calls to use new logging API
Changed for loop style to work with MSVC.
Corrected another for loop to work with MSVC
Fix a warning
Actual fix to warning
Another warning fix
Change lou_logPrint to accept const char *
Fix a linker warning
Revert last change as it broke BrailleBlaster
Fix for VC++ runtime issue with floating support not being loaded
Change VC nmake file to build liblouis.dll and liblouis.lib instead of version suffix
Fix a critical bug where logging was not protecting against % in format strings.
Added empty logging.c and modified Makefile.am, Makefile.nmake to include it when building.
Moved some logging code into logging.c
Changed a printf statement to logging
Restored some code accidentally removed and removal of some nonsense code.