Files were being downloaded as undefined.undefined because I didn't emulate
the old 'base' and 'ext' properties - just use a single 'name' property now.

Synchronet v3.19 now converts ANSI-encoded DIZs to Ctrl-A format upon import.

Display the batch flag letter with the same color as the filename, but inverted intensity. The batch flag shouldn't stand-out (be bright) anyway, but the main reason is because I'm changing the default file description attribute to be lightgray instead of dark green.

CID 33567

CID 33320 and 333321

This looks like a 20-year-old copy/paste bug. CID 33168.

Fixes CID 33724.

Fixes CID 33498

And use "Operator" rather than "Sysop" for operator commands.

This is pretty convenient and handy (rather than having to use &E or the equivalent command from the file xfer menu and then re-list files).

Fixes the link failure when sauce.o didn't need to be rebuilt.

Duplicate archives (e.g. ZIP files) often have the different digest/hash/CRC
values because they have a different ZIP comment or the files were archived
in a different order or used different compression schemes. You can now detect
(and delete) these duplicates.

Inspired by Blocktronics (and other ANSI art group) packs' FILE_ID.DIZ/ANS files:
* Support (and prioritize) FILE_ID.ANS
* Convert ANSI color/attribute sequences in DIZ files to Ctrl-A equivalent (uses SAUCE width and ICE color, if specified)
* Don't treat DIZ as a series of lines, they're not always nowadays.
* New putmsg() mode: P_INDENT to print files indented by current column
* Display full (up to 64-char) filenames in lists when using 132+ column terminal.
* Use the Author, Group, and Title fields from the SAUCE if present/non-blank
* 2 new text.dat strings: 301 (FiAuthor) and 302 (FiGroup)
* Also fix bug with repeated Cost header field on bulk-uploaded files.

I know this'll break the *nix build (sauce.c dependency), but I'll fix that next.

Also added -normal option to use save/normal/restore attr sequence for conditional-newlines. This is helpful for narrow ANSIs (e.g. 44-column FILE_ID.ANS) that depend on the viewer to read/use the SAUCE info.

"startup" was being deref'd after the caller free'd it because these thread functions were calling thread_down() before calling mail_close_socket(), which deref's startup which was subject to a race condition.

It Ctrl-A encodes a possibly ANSI-encoded string, supporting on color/attribute sequences and stripping all others.

This caused an issue for the soon to be committed P_INDENT support in putmsg().

Going to use these to store SAUCE "AUTHOR" and "GROUP" fields for files.

To match the Remove file command sequence (for consistency).