New Features:
- Multiple bindings for each service
  Use comma-separated interfaces on Interface= lines in the ini file.
  Default is now "0.0.0.0,::"
- IPv6 support
- TLS support for the webserver and (non-static) services
  New TLS option in services.ini (ie: Options=TLS)
- Decrease LEN_SCAN_CMD to 35 chars, increase the CID field to 45 chars,
  and rename the MAIL_CMD string to IPADDR.  I think this frees up the
  note field for SysOp use.

MinFileSize and MaxFileSize keys in the [ftp] section of the ctrl/sbbs.ini file
these values default to 0 which effectively applies no min/max to uploaded
files. Set MinFileSize to 11 to defeat the recent penetration testing seen
uploading 10 byte files with random filenames (8 alpha cars ending in ".txt")
with 8 alpha chars in the file, followed by a CRLF pair for a total size of 10
bytes.
Fixed bug whereby failed/aborted uploaded files would be left (not deleted).
Log errors when any file deletion fails in the FTP server.

code for the size/credit value.

downlaod), and the "check for file existence" option is enabled, then get the
file size as well and display that instead of the credit value. This fixes the
problem with files whose size has changed after they were uploaded or added
to the filebase. Directories which are not free still displayed with each
file's credit value (since that may not have any correlation with the file
size).
Display file sizes and credit values in a shorter more easy to read format
with suffixes for gigabytes (G), megabytes (M), kilobytes (K), and bytes (B).
Using an uppercase 'K' now to be more consistent with modern conventions
for abbreviating Kilobytes/Kibibyte (1024 bytes).

(previously, uninitialized values).

rather than 0 (a number) when the current sub-board or directory is invalid
(e.g. no user logged in yet).

no functional change.

Allow global services.ini keys to edited on the "General" tab.
Moved "Sound" tab to the far right.
Still need a method for deleting keys.

panel termination (warnings about servers in-use).

Added Help->Donate menu item.

settings (e.g. command-lines, etc.). More user-friendly than just popping the
sysop into an editor to edit their services.ini file by hand.

connection, just incase there's any stale data in the input or output buffers.
Added a comment regarding the rioctl() function to decree that it's crazy
minimalistic API be left alone in tribute to Steve Deppe.

-- "he breaks more than he fixes"

as a zero-length string), and don't use any prefix "stuff" when handle_quotes
if not set.

if one isn't specified.

For backward compatability with versions before 3.16c, this argument should
still be provided.

"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.