Fix semaphore list passing.

Make timeouts at different points in the protocol use different log messages.
When a frame is sent, use a single send() call to avoid small packets on the
wire.

Add TODO comment on locking nodes from the address list.

Don't break out of the session until all ACKs are received.
Better handling of timeouts and poll() errors.

it on my system.

If the rx_callback function returns false, send an M_SKIP and continue.
Fix the advertised program name in accept() method.
Don't ACK the file until you have the whole thing.

Set the inbound directory based on the outbound directory (replace "out" with
"in"), if not explicitly set in the .cfg file.
The setting SCFG->Networks->Fido->Inbound File Directory is being deprecated
(and not used by SBBSecho v3+).

iniReadNamedLongInt()
iniGetNamedLongInt()
iniSetNamedLongInt()
iniSetNamedHexInt()

embedding REQ handling into binkit.

Version 1.09: Added a command-line parameter to let the user choose a message sub-board only within their current message group, or file directory only within their current file library.

intervals (in seconds or fractions of a second) with values in .ini files.

(or possibly intervals) in seconds or fractions of a second. Supports
multipliers: (Y)ear, (W)eek, (D)ay, (H)our, and (M)inute.

- Bool option conversion (e.g. nocircularfwd->fwd_circular) didn't work.
- Log flags needs 0x prefix
- Missing ELIST_ONLY -> add_from_echolists_only bool conversion.

Also using "keys" instead of "flags" for echolists and node configurations.

sbbsecho.cfg file is going to be replaced with sbbsecho.ini. This script can
be used to convert an existing sbbsecho.cfg (or other sbbsecho config file with
a different filename) to an sbbsecho.ini (or other filename if desired). Either
just run "jsexec sbbsecho_upgrade.js" or you can pass the cfg filename and the
ini filenames on the command-line (e.g.
jsexec sbbsecho_upgrade.js path/to/my/cfgfile path/to/my/inifile)

Before I commit v3, I wanted to have some SBBSecho sysops give this converter a
test run. The sbbsecho.ini file won't be used by anything today, I just want
you to examine the resulting file or send it to me (with redacted pwds if you
like).

The objective is to retain all your settings (though some of them are going
away, e.g. store_seenby, store_path, store_kludge, as these are just going
be mandatory in future versions) but any comments you may have added by hand
in your sbbsecho.cfg, unfortunately, won't be retained.

On the bright side, the sbbsecho.ini *will* retain your comments when edited
with the future version of echocfg and the modifications made via areafix won't
be so damaging to any manual changes you've made.

I hope you find the new config file easier to read and manage. I've tried to
retain as many key-words as the old sbbsecho.cfg, so it should feel familiar.
Feedback is welcome.

Version 1.09: Updated to not center the message header lines horizontally.  Now, it will display the header lines starting on column 1.  This was done to fix a display issue in some terminal software.

Re-populate the address list with 5D addresses... binkp.js fills it with
4D ones.

in the .try files.

is required.

Treat a password of '-' the same as an undefined password in binkit.js.

To fully comply with the binkp/1.1 (FSP-1024) spec, we need to rescan the
outbound after sending an M_EOB... this shouldn't actually be necessary
though since we're holding the .bsy lock the whole time, and nothing else
is allowed to add stuff (per FTS-5005).  This is mostly for FREQs, so once
the req handler is in there, I'll likely ignore this requirement.

Still TODO before callout support is "complete":
1) Enhance handling of received file names
   a) On pkt or bundle files, place in sbbsecho inbound directory. with
      a known unique name... don't rely on the remote to make one up.
   b) For req files, handle the file request directly.
   c) All other files, place somewhere else for processing.
2) Perform actions when files are received... touch semaphores, parse TIC, etc.
3) Update flo files after a partial run... mark successful transfers as skip.
4) Put real data into the .try file.

as "all the information" is sent... per FTS-5005: "The mailer should not wait
for the end of the session when deleting the flow file."