Log Message:
Update to 0.6.8:

* Version 0.6.8 (released 2006-10-18)

** The gnulib directory is separated into two directories.
One gnulib directory (lib/gl/) for the LGPL library in lib/, and one
gnulib directory (gl/) for the GPL tools in src/.  This allows the
GPL'd tools to use more gnulib modules than before, since earlier all
gnulib files had to be LGPL.

** Update gnulib files.

** Some minor cleanups, like assuming locale.h and setlocale().

** API and ABI is backwards compatible with the previous version.