[smtpd/qpsmtpd] b1b59c: Find the karma DB dir (#264)

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  Branch: refs/heads/master
  Home:   https://github.com/smtpd/qpsmtpd
  Commit: b1b59cbfa12b7065ff08564a88d300101cfb3552
      https://github.com/smtpd/qpsmtpd/commit/b1b59cbfa12b7065ff08564a88d300101cfb3552
  Author: Daniel B <[email protected]>
  Date:   2016-05-04 (Wed, 04 May 2016)

  Changed paths:
    M plugins/karma_tool

  Log Message:
  -----------
  Find the karma DB dir (#264)

* Update data_post_headers documentation
We cannot reject at this stage, which is only there to alter headers.
Fix #258

* DMARC plugin: reject in data_post
Followup of #258: we cannot reject a connection during data_post_headers. So add a new hook in data_post to do the real rejection

* Use candidate_dirs to find the DB



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