* smiley-ems.el (smiley-update-cache): Check for valid types.

* smiley-ems.el (smiley-update-cache): Check for valid types.

* gnus-art.el (gnus-with-article-buffer): New macro.

* gnus-picon.el (gnus-picon-transform-newsgroups): Keep the
strings as well as the glyphs.
(gnus-picon-transform-address): Ditto.
(gnus-picon-insert-glyph): Ditto.
(gnus-picon-transform-newsgroups): Toggle.
(gnus-picon-transform-address): Toggle.

* gnus-ems.el (gnus-remove-image): New function.
(gnus-put-image): Take an optional string.

* gnus-util.el (gnus-text-with-property): New function.

* gnus-art.el (gnus-delete-images): New function.

* gnus-ems.el (gnus-article-display-xface): Mark and store image.

* gnus-art.el (gnus-article-wash-status-entry): Renamed.
(gnus-article-wash-status): Use it.
(gnus-signature-toggle): Clean up.
(gnus-add-wash-status): New function.
(gnus-delete-wash-status): New function.
(gnus-article-hide-text-type): Use them throughout.
(gnus-add-image): New function.

* gnus-ems.el (gnus-article-display-xface): Use new interface.

* gnus-xmas.el (gnus-xmas-article-display-xface): Use new
interface.

* gnus-art.el (article-display-x-face): Cleaned up.

* rfc2047.el (rfc2047-field-value): New function.

* mail-parse.el (mail-header-field-value): New alias.