Log Message:
Upgrade to ImageMagick6 version 6.9.8-10.

Upstream changes:

2017-06-10  6.9.8-10 Cristy  <quetzlzacatenango@image...>
  * Release ImageMagick version 6.9.8-10, GIT revision 11637:eb6f363:20170610.

2017-06-10  6.9.8-10 Cristy  <quetzlzacatenango@image...>
  * Introduce SetMagickSecurityPolicy() (MagickCore) and
    MagickSetSecurityPolicy() (MagickWand) to set the ImageMagick security
    policy (reference https://github.com/ImageMagick/ImageMagick/issues/407).

2017-06-02  6.9.8-9 Cristy  <quetzlzacatenango@image...>
  * Release ImageMagick version 6.9.8-9, GIT revision 11625:91bb35e:20170602.

2017-06-02  6.9.8-9 Cristy  <quetzlzacatenango@image...>
  * Fix choppy bitmap font rendering (reference
    https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=32071).
  * Add support for 'hex:' property.

2017-05-28  6.9.8-8 Cristy  <quetzlzacatenango@image...>
  * Release ImageMagick version 6.9.8-8, GIT revision 11606:8b67333:20170528.

2017-05-28  6.9.8-8 Cristy  <quetzlzacatenango@image...>
  * Transient error validating the JPEG-2000 image format (reference
    https://github.com/ImageMagick/ImageMagick/issues/501).
  * Properly allocate DCM image colormap (reference
    https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=32063).

2017-05-26  6.9.8-7 Cristy  <quetzlzacatenango@image...>
  * Release ImageMagick version 6.9.8-7, GIT revision 11598:07d1dee:20170526.

2017-05-23  6.9.8-7 Cristy  <quetzlzacatenango@image...>
  * Improper allocation of memory for IM instances without threads (reference
          https://github.com/ImageMagick/ImageMagick/issues/497).
  * Delete corrupt image from list (reference
    https://github.com/ImageMagick/ImageMagick/issues/500).

2017-05-19  6.9.8-6 Cristy  <quetzlzacatenango@image...>
  * Release ImageMagick version 6.9.8-6, GIT revision 11590:7ce2d38:20170519.

2017-05-15  6.9.8-6 Cristy  <quetzlzacatenango@image...>
  * Support various image operators for the compare utility (reference
    https://www.imagemagick.org/discourse-server/viewtopic.php?f=2&t=31938).