Merge in edward's speed improvements
Merge in guy's update to rfc822
NO Add "Header" command to allow user defined headers.
It will disallow "From", "Sender", "To", "Subject", "Cc", "Bcc"
Made "write" command delete entire header instead of just 1st line
Made "type user" do a substring match instead of straight comparison
(this allows user to match user@machine, which makes it USEFUL)
unread/Unread/new/New command marks messages as unread
Made "-" and "+" skip over deleted messages (from guy@sun)
if PAGER variable is set, use it instead of MORE (#define)
if Replyall variable is set, do a "Reply" (e.g. reverse R and r)
if Replyall variable is set, do a "reply" (e.g. reverse R and r)
Print header info even if -f given.
Don't allow editing anything other than regular files.
deleted isatty() - it's in the C library
deleted strncmp() - it's in the C library
Lint clean up: 0 -> (char *)0
Lint clean up: 0 -> (char *)0
Fix uninitialized variable problem (from guy@sun)
Fix uninitialized variable problem (from guy@sun)