- return 2 values instead of pair from READ-RFC822-FIELD
- return alist in correct order from READ-RFC822-HEADERS and
READ-RFC822-HEADERS-WITH-LINE-BREAKS
- reduce RFC822 to four procedures, 2 for reading header bodies into
lists of lines, 2 for reading them into concatenated strings
- remove lots of Olinism and bugs from rfc822.scm
- massage dependent code accordingly, clarifying semantics
sperber