Log Message:
Update www/drupal6 package to fix security problem.
pkgsrc change: add LICENSE.

Drupal 6.14, 2009-09-16
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- Fixed security issues (OpenID association cross site request forgeries,
  OpenID impersonation and File upload), see SA-CORE-2009-008.
- Changed the system modules page to not run all cache rebuilds; use the
  button on the performance settings page to achieve the same effect.
- Added support for PHP 5.3.0 out of the box.
- Fixed a variety of small bugs.