* mime-pgp.el (mime-pgp-fetch-key, mime-pgp-show-fetched-key-for-pgp,

* mime-pgp.el (mime-pgp-fetch-key, mime-pgp-show-fetched-key-for-pgp,
mime-pgp-show-fetched-key-for-pgp50, mime-pgp-show-fetched-key-for-gpg): New
functions.
(mime-pgp-show-fetched-key): New macro.
(mime-pgp-fetch-timeout, mime-pgp-http-proxy-server-port,
mime-pgp-http-proxy-server-address, mime-pgp-http-proxy-url-template,
mime-pgp-keyserver-port, mime-pgp-keyserver-address,
mime-pgp-keyserver-url-template): New user options.
(mime-pgp-key-expected-regexp-alist, mime-pgp-bad-signature-regexp-alist,
mime-pgp-good-signature-regexp-alist, mime-pgp-default-language-alist,
mime-pgp-command-alist): Change the customization group to `mime-pgp'.
(mime-pgp): New group for customization.

* mime-mc.el (mime-mc-pgp50-process-region, mime-mc-gpg-process-region):
Deactivate passwd if detecting the value of `micalg' is failed and
`mc-passwd-timeout' is nil; remove useless `progn's.
(mime-mc-comment-alist, mime-mc-omit-micalg, mime-mc-shell-file-name): Change
the customization group to `mime-mc'.
(mime-mc): New group for customization.