2016-01-17  6.9.3-2 Cristy  <quetzlzacatenango@image...>
  * Don't reuse lock after free (reference
    http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=29031).

2016-01-21  6.9.3-2 Dirk Lemstra <[email protected]>
  * Fixed writing DocClass in CALS coder (reference
    http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&p=129478).