Updated ImageMagick to 7.0.5.5.

2017-04-24  7.0.5-5 Cristy  <quetzlzacatenango@image...>
  * Release ImageMagick version 7.0.5-5, GIT revision 19908:bc92979:20170424.

2017-03-26  7.0.5-5 Cristy  <quetzlzacatenango@image...>
  * Minimize buffer copies to improve OpenCL performance.
  * Morphology thinning is no longer a no-op (reference
    https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=31650).
  * Patch two PCD writer problems, corrupt output and dark pixels (reference
    https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=3164).
  * Support ICC based PDF's (reference
    https://github.com/ImageMagick/ImageMagick/issues/417).
  * Fix improper EPS clip path rendering (reference
    http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=31722).

(wiz)