[ImageMagick] - Update to 6.8.5-10 upstream version (bz#720285).

[Pavel Alexeev]

commit dd668835c4c93f2668ec9eafe8c2a5fa0b019d81
Author: Pavel Alexeev (aka Pahan-Hubbitus) <pahan at hubbitus.info>
Date:   Wed Jun 12 15:10:59 2013 +0400

    - Update to 6.8.5-10 upstream version (bz#720285).
    
    - By Remi Collet request (bz#969760) enable those features in ImageMagick:
    	--with-lcms2 (instead of --with-lcms): lcms2-devel
    	--with-openexr: OpenEXR-devel
    	--with-webp: libwebp-devel