[Checkins] [zopefoundation/grok] 7cdd08: Update the extends URL to point to github.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/grok
  Commit: 7cdd082428aeb7db14ab3cde7b2276105dabf7e4
      https://github.com/zopefoundation/grok/commit/7cdd082428aeb7db14ab3cde7b2276105dabf7e4
  Author: Jan-Wijbrand Kolman <janwijbrand at gmail.com>
  Date:   2013-04-03 (Wed, 03 Apr 2013)

  Changed paths:
    M buildout.cfg

  Log Message:
  -----------
  Update the extends URL to point to github.