Log Message:
Update to version 0.9.7.

Addresses PR pkg/20169 by Quentin Garnier.

Changes:

- follow PKG_SYSCONFDIR
- use CONF_FILES correctly
- simplify Makefile and clean it up a bit

0.9.7
=====
- Add support for Darwin (MacOS X) (thanks to Tim Buchheim)
- Add new feature : 'retry_delay' option to retry tunnel request
  to server every n seconds (thanks to Peter Todd of Linux Journal
  who suggested this feature)
- Correct WindowsNT-2K-XP bugs of directory separator and environment
  variables setting (thanks to Christian Meyer)
- Correct digest-md5 bug (thanks to Love from ngtrans)
- Correct linux.sh template to add default route to 2000::/3 (thanks
  to Peter Schneider-Kamp)
- Correct openbsd.sh template bugs in radvd config file generation
  (thanks to Stephen Harrell)
- Correct netbsd.sh template bug of radvdconfigfile variable name
  (thanks to Brad Forschinger)
- Modify code to be tsp-draft compliant
- Update man pages and documentation