"high ASCII" is passed to the word-wrap function.

modifying the 'attr' field).
Also, only set the "SENT" attribute flag if the told not to delete netmail.
This will reduce the risk to those using SBBSecho without the -d option.

Don't pack netmail that has the "SENT" attribute flag set.
Set the "SENT" attribute flag in netmail (.msg) files so if they're not deleted
they won't be repacked/sent again later.

(to testbuild.js), I suspect the setlocal call is causing the current error
level to not be passed up to the caller. If build.bat failed, testbuild.js
would not always detect the build failure.

padding after it, it wasn't previously considered the same prefix.

Fix prefix comparison by adding a function for it.

Add a great deal of comments for future-Deuce.

The old code unwrapped from the old width and rewrapped to the new width in
a single pass.  While this was more efficient, it was very difficult to work
on and understand the code.

Now, wordwrap() is a two pass process.  The first pass unwraps "paragraphs"
(defined as being the text between two hard CRs) and the second pass wraps
to the new width.  This makes it simpler to understand and debug.

This fixes some odd wrapping issues when quoting messages.

Lines made up entirely of whitespace always end with a hard CR.

in scenarios where the tagfile may be used (e.g. not editing extended file
descriptions). This should allow SlyEdit and other extenal message editors
to detect the support for the editor.tag file dynamically rather than by
using the Synchronet version number. If the 7th line is blank or non-existent,
then the external editor tag file is not supported.
Overhauled editor_inf() to use a file stream/fprintf.

temp directory (system.temp_dir in JS), sbbs will read in this file and append
it to the message body *after* the user's .sig file (if there is one).
Bug-fix: don't append .sig files when editing extended file descriptions.

time (e.g. "00:00:00"). Synchronet v3 has always forced this value to 0 since
it's inaccurate over TCP/IP with the current hard-coded "CPS" rate of 3000
(i.e. bytes-per-second).

fit on the current line.

when posting.

for HEAD requests.

Content-Length header for static files.

'subnum' as the first command-line argument.
Also, set the current sub-board value used for ARS comparisons before passing
control to a Scan Msgs mod (if there is one), just in case the mod uses ARS
(e.g. bbs.compare_ars) to check for access.

Display the "No messages found" text when attempting to thread up or down
and there is no corresponding message.

for sbbs_t::loadposts().

Removed extra smb_freemsgmem() stuff in listmsgs() loop (leftover?).

scanposts(), and listsub(). These functions are exposed in the JS 'bbs' object
as scan_subs(), scan_msgs(), and list_msgs().
Wherease previously, all of "your messages" (messages addressed to you)
would be found/displayed if the user answered (Y)es to the "Subjects Only?"
prompt, and only un-read message (to you) would be displayed if they answered
(N)o to the "Subjects Only?", providing long-standing confusion about the
different behavior, now the user is prompted whether to display un-read
messages only (in scansubs/scanallsubs), and in the case of the logon
question to "Search all subs for un-read messages to you?", only un-read
messages are listed/displayed, regardless of how the user answers the
"Subjects Only?" question.
SCAN_UNREAD is only applicable when combined with SCAN_TOYOU.

Added new commands to the msg reading prompt: 'N' (list new messages), 'U'
list un-read messages to-you.

2 new text.dat entries: DisplayUnreadMessagesOnlyQ and NoMessagesFound

getusrsub() returned the completely wrong sub-board number. It assumed that
getusrgrp() returned a 0-based index when in fact it returns a 1-based group
number. This bug was only visible when using certain @-codes (e.g. "SN",
"SL", "SR", and "SMB_SUB_NUM") when a sub-board was open via Synchronet
internal function (i.e. not via JS MsgBase class). If the current group was the
last group visible to the user, this would cause a crash.

JS model (bbs.scan_msgs() method).

was never used. This was intended to be a method for internationalization,
letting the sysop change which key is used as the uiniversal "quit" key.
This commit replaces most of the uses of the hard-coded 'Q' for quit wtih the
3rd charcter in the text.dat YNQP string. Some hard-coded menus still have the
'Q' key hard-coded and will need to be addressed later. The text.h YN index
macro was changed to YNQP and the JS text index variable name will change
as well.