(est-hide-cgi-mode): New variable.

(est-hide-cgi-mode): New variable.
(est-view-url-prefix): New variable.
(est-uri-decode-feature-name-body): New function.
(est-uri-encode-feature-name-body): New function.
(www-uri-decode-feature-name): Use `est-uri-decode-feature-name-body'.
(www-uri-encode-feature-name): Use `est-uri-encode-feature-name-body'.
(www-uri-make-feature-name-url): Add implementation for
`est-hide-cgi-mode'.
(www-uri-decode-object): Support `est-hide-cgi-mode'; use
`est-uri-decode-feature-name-body'.
(www-uri-encode-object): Support `est-hide-cgi-mode'; use
`est-uri-encode-feature-name-body'.
(www-uri-make-object-url): Add implementation for `est-hide-cgi-mode'.