* gnus-art.el (gnus-mime-jka-compr-maybe-uncompress): Remove; merge in into

* gnus-art.el (gnus-mime-jka-compr-maybe-uncompress): Remove; merge in into
 mm-decompress-buffer.
(gnus-mime-copy-part): Use the MIME part charset, the value which a user
 specified or gnus-newsgroup-charset for decoding, like gnus-mime-inline-part
 does; set buffer-file-coding-system to tell save-buffer what was used.
 Suggested by Kevin Ryde.
(gnus-mime-inline-part): Allow the name parameter as well as the filename
 parameter; force decompressing of compressed data; always display contents
 being not decoded as unibyte.

* mm-view.el (mm-display-inline-fontify): Allow the name parameter as well as
 the filename parameter.

* mm-util.el (mm-decompress-buffer): Merge gnus-mime-jka-compr-maybe-uncompress.
(mm-find-buffer-file-coding-system): Doc fix; force decompressing of compressed
 data.