* imap.el (imap-base64-encode-string, imap-base64-decode-string):
New functions. They are identical to the built-in codec if
possible, otherwise the functions defined in mel are used.
* imap.el (imap-base64-encode-string, imap-base64-decode-string):
New functions. They are identical to the built-in codec if
possible, otherwise the functions defined in mel are used.