2016-03-22  6.9.3-8 Cristy  <quetzlzacatenango@image...>
  * Respect gravity when rendering text (e.g. convert -gravity center my.txt)
  * Return empty string for %d property and no directory (reference
    https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=29365)
  * Return filename for the %i property (reference
    https://www.imagemagick.org/discourse-server/viewtopic.php?f=2&t=29364).
  * Fixed lost pixels in frequency space (reference
    https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=29374).