Log Message:
Update to 0.6.7:
* Version 0.6.7 (released 2006-09-13)

** Fix build failure of idn-int.h on C99 platforms.
Reported by Paul Howarth <paul@city-fan.org>.

** The manual includes the GPL license, for the command-line tools.

** The function, variable and concept index is moved to the end of the manual.

** Update gnulib files.

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