* gnu/packages/imagemagick.scm (imagemagick): Update to 6.8.7-9.
* gnu/packages/imagemagick.scm (imagemagick): Update to 6.8.6-9.
* gnu/packages/imagemagick.scm: New file. * Makefile.am (MODULES): Add it. * guix/download.scm (%mirrors): Add `imagemagick' entry.