* mh-acros.el (mh-defun-compat, mh-defmacro-compat): Add name argument

* mh-acros.el (mh-defun-compat, mh-defmacro-compat): Add name argument
since compatibility functions should have our package prefix (mh-) by
Emacs convention and to avoid messing up checks for the same functions
in other packages. Use explicit argument instead of forming name by
adding mh-e prefix so that one can grep and find the definition.

* mh-alias.el (mh-alias-local-users, mh-alias-reload)
(mh-alias-expand, mh-alias-minibuffer-confirm-address): Use
mh-assoc-string instead of assoc-string.

* mh-compat.el (assoc-string): Rename to mh-assoc-string.
(mh-mail-abbrev-make-syntax-table, mh-url-hexify-string): Move here
from mh-utils.el.
(mh-display-completion-list): Move here from mh-comp.el.
(mh-face-foreground, mh-face-background): Move here from mh-xface.el.
(mh-write-file-functions): Move here from mh-folder.el

* mh-folder.el (mh-write-file-functions-compat): Move to mh-compat.el
and rename to mh-write-file-functions.
(mh-folder-mode): Use the new name.

* mh-gnus.el (gnus-local-map-property): Rename to
mh-gnus-local-map-property.
(mm-merge-handles): Rename to mh-mm-merge-handles.
(mm-set-handle-multipart-parameter): Rename to
mh-mm-set-handle-multipart-parameter.
(mm-inline-text-vcard): Rename to mh-mm-inline-text-vcard.
(mm-possibly-verify-or-decrypt): Rename to
mh-mm-possibly-verify-or-decrypt.
(mm-handle-multipart-ctl-parameter): Rename to
mh-mm-handle-multipart-ctl-parameter.
(mm-readable-p): Rename to mh-mm-readable-p.
(mm-long-lines-p): Rename to mh-mm-long-lines-p.
(mm-keep-viewer-alive-p): Rename to mh-mm-keep-viewer-alive-p.
(mm-destroy-parts): Rename to mh-mm-destroy-parts.
(mm-uu-dissect-text-parts): Rename to mh-mm-uu-dissect-text-parts.
(mml-minibuffer-read-disposition): Rename to
mh-mml-minibuffer-read-disposition.

* mh-identity.el (mh-identity-field-handler): Use mh-assoc-string
instead of assoc-string.

* mh-mime.el (mh-mm-inline-media-tests, mh-mm-inline-message)
(mh-mime-display, mh-mime-display-security) (mh-insert-mime-button,
mh-insert-mime-security-button) (mh-handle-set-external-undisplayer)
(mh-mime-security-press-button, mh-mime-security-show-details)
(mh-mml-attach-file, mh-mime-cleanup)
(mh-destroy-postponed-handles): Use new mh-* names for compatibility
functions.

* mh-utils.el (mail-abbrev-make-syntax-table): Move to mh-compat.el
and rename to mh-mail-abbrev-make-syntax-table.
(mh-beginning-of-word): Use the new name.
(mh-get-field): Delete ancient alias.

* mh-xface.el (mh-face-foreground-compat): Move to mh-compat.el and
rename to mh-face-foreground
(mh-face-background-compat): Move to mh-compat.el and rename to
mh-face-background.
(mh-face-display-function): Use the new names.
(mh-x-image-url-cache-canonicalize): Use mh-url-hexify-string instead
of url-hexify-string.
(url-unreserved-chars): Move to mh-compat.el and rename to
mh-url-unreserved-chars.
(url-hexify-string): Move to mh-compat.el and rename to
mh-url-hexify-string.