* Revise DICOM window and rescale handling.
* Restore the -alpha Shape option.
* Fix transient PDF bug.
* The +opaque option now works on all channels.
* Ensure backwards compatibility for the -combine option.
* Check for EOF conditions for RLE image format.
* Reset histogram page geometry.
OBS-URL: https://build.opensuse.org/package/show/graphics/ImageMagick?expand=0&rev=287
