So on Windows, calling unlock() on a file region that you don't have locked,
incurs a delay. Likewise, calling lock() on a file region that already have
locked incurs a delay. These delays were seriously throttling message imports
on Windows (e.g. importing echomail or QWK packets). What should take a few
seconds, was taking minutes with noticeable delays. This code has been
performing redundant locks/unlocks for over 15 years, so I can only conclude
that the performance penalty is a new behavior introduced in recent version(s)
of Windows.

end of the file.

The area change feature now uses DDLightbarMenu.  There is no more internal lightbar code in this message reader. This requires the latest dd_lightbar_menu.js (in sbbs/exec/load).

Screen refresh optimization: Only do PageUp and PageDown if not already at the top or bottom of the menu items.  If already there, don't redraw the menu items.

MSS for the packet size.

Fixes problem with telnet server where large transfers were full packets
followed by a 12 byte packet.  Also removes hack in webserver that always
assumed timestamps were enabled.

The Win32 code has not been tested, but is assumed to work perfectly.

Various sixel fixes for sixel scroll mode.

SBBSCTRL "About" dialog box) and then exit.

If this doesn't fix the copy/paste issues nelgin was having, nothing will.

tree to commit both at once.

There was a crash when wrapping at the end of a search.  Now there isn't.
You're welcome.

If you change the current mode before exiting, your window size will not be
saves.

Also, fix crash in search when there's a blank option at the end.

Derp.

download notification short-mesage (telegram) sent to an uploader from
user_downloaded_file().

script file.
Change wordage of recvline() returned null exception (it's a timeout).

- reverse_mail (default: true), show the newest received at the top of the list
- reverse_msgs (default: true), show the newest at the top
- track_last_read_mail (default: false)

Store and retrieve user properties per-sub or mail-type (your, sent, all).
This will enable per-user per-area preferences. Right now, just the last read
mail msg number is stored here.

and a gtkutils build target to build them all (e.g. "make gtkutils")
to make life easier for Nelgin

Change F1-F5 sequences to CSI sequences.
Update SyncTERM termcap.

Allow setting a '0' for left/right margins to leave them unchanged.