Updated ImageMagick to 7.0.4.10.

2017-02-18  7.0.4-10 Cristy  <quetzlzacatenango@image...>
  * Release ImageMagick version 7.0.4-10, GIT revision 19608:fe757a2:20170218.

2017-02-18  7.0.4-10 Dirk Lemstra <dirk@lem.....org>
  * Fixed fd leak for webp coder (reference
    https://github.com/ImageMagick/ImageMagick/pull/382)

2017-02-15  7.0.4-10 Cristy  <quetzlzacatenango@image...>
  * Prevent random pixel data for corrupt JPEG image (bug report from
    Hirokazu Moriguchi, Sony).
  * Restore -mattecolor option.
  * Support pixel-cache and shred security policies.
  * Bump Magick++ SO.  Previously a global replace changed matteColor to
    alphaColor.

2017-02-14  7.0.4-9 Cristy  <quetzlzacatenango@image...>
  * Release ImageMagick version 7.0.4-9, GIT revision 19580:d474b37:20170214.

2017-02-14  7.0.4-9 Cristy  <quetzlzacatenango@image...>
  * Revert patch that did not set update trait on alpha channel.

2017-02-13  7.0.4-8 Cristy  <quetzlzacatenango@image...>
  * Release ImageMagick version 7.0.4-8, GIT revision 19574:7642384:20170213.

2017-02-09  7.0.4-8 Dirk Lemstra <dirk@lem.....org>
  * Fixed memory leak when creating nested exceptions in Magick++ (reference
    https://www.imagemagick.org/discourse-server/viewtopic.php?f=23&p=142634)

2017-02-09  7.0.4-8 Cristy  <quetzlzacatenango@image...>
  * Unbreak build without JPEG support (reference
    https://github.com/ImageMagick/ImageMagick/pull/373).
  * Document behavior change in the security policy (thanks to yoya @
    https://blog.awm.jp/2017/02/09/imagemagick-en/).
  * Return unbiased standard deviation for image statistics (reference
    https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=31377).
  * Don't set update trait on alpha channel (private e-mail concerning
    -levels-colors option).

(wiz)