Log Message:
ImageMagick: update to 7.0.7.22.

2018-01-22  7.0.7-22 Cristy  <quetzlzacatenango@image...>
  * Release ImageMagick version 7.0.0-22, GIT revision 22391:e8be814f1:20180122.

2018-01-06  7.0.7-22 Cristy  <quetzlzacatenango@image...>
  * Support aspect ratio geometry, e.g. -crop 3:2.
  * Add support for reading the HEIC image format (reference
    https://github.com/ImageMagick/ImageMagick/issues/507).
  * Fixed numerous memory leaks, credit to OSS Fuzz.