automatically revert to Raw/TCP mode. This resolves the issue of users that
connect using modem/serial emulators over TCP that do not actually support Telnet and then either try to transfer files, which usually will not work due to escaped (or unescaped) IAC (0xFF) characters, or the user may be sent Telnet Go Ahead (GA) sequences which may display as periodic garbage in their terminal program.

This seemed like a better solution than having (yet another) dedicated terminal server port for "raw" connections over TCP, though a "raw" port still might not be a bad idea for a future enhancement. RLogin is already super close to "raw", so it's probably not really necessary to have another port configured/listening.

currently logging-out.

truncating numeric value to 8-bits (0-255). Added support for hexadecimal
notation (prefix with 0x) while I was at it.

after a user (has been) disconnected and before the node transitions to waiting
for connection (WFC) status. Usually the duration of this status is very short,
but it can be longer (e.g. for running log-out module and event) and for (new)
msg-scan pointer fix-ups.
Updated logout() to remove some cruft and add some more log/debug output.
Automatic new-scan pointer fix-ups when performing new-message scans (if the
current pointer is greater than the last message number, set it to the last
message number) and when saving message pointers.
Passing user_t* to get/putmsgptrs() instead of message number now (to better
detect Guest account).

"local chat with sysop" rather than "private chat with node 0".

This is *likely* to break the Win32 build and even when the macros are
specified in xpdev, I doubt Microsoft has added support for the 'z' size
specifier used in smblib/smbadd.c we'll likely need a SIZE_T_SIZE macro
that is "z" on C99 systems and "ll" or "64" or whatever it is on Win32.

Or maybe a whole slew of complete SIZE_T macros since the 32/64 but thing
and the max file size thing may actually need the full format specification
to be in the macro... "zu" on C99 platforms and whatever magic Microsoft
needs there.

RLogin and SSH.

Removed copyright from version display.
Moved occurance of "-pause" for debugging.

offline) if it's in the "waiting for call" state. This is not compatible with
the sbbs v2 method, where each node must down itself.

Added "via telnet" when connection == 0xffff.
Added display of [C] when node has Local Chat (NODE_LCHAT) bit set.