for getstr() to be able to return when user right-arrows off end of string
(for use in msgeditor).

And have it return bool, like the others. The error logging is different
(not using errormsg), but I think that's okay.

Beautified the output a bit.

... trying to get to bottom of user.tab corruption reported in issue #797.

Also, don't need to seek in lockuserdat() since we always call seekuserdat()
first.

Trying to get to the bottom of user.tab corruption (issue #797).

Though we've had the auto-filtering feature for about a year now, with
expiration dates supported/added to every trash record, nothing was
removing the expired trash/filter items. Until now.

Check the size of your text/*.can files: if they're really big, this is
the solution.

Not yet building for Windows

Sysops will want to run this periodically (monthly?), e.g.
	trashman /sbbs/text/*.can

Root-caused this problem to read() failures which are now caught and logged
rather than zeroing out the statistics fields.

Allow filtering/blocking email based on the name portion of email header
fields.

(these options follow the password by one or more spaces)

I implemented these based on AreaFix v1.10 User's Guide, at Ragnarok's
suggestion/request. I didn't test them, so looking forward to getting some
test results.

The -L and -Q options are functionally identically to the %LIST and %QUERY
AreaManager commands, while -R ads a little efficiency by combining +areatag
(add) and %RESCAN <areatag> requests in a single command.

Apparently AreaFix and other area managers assume password never have spaces
in them, so they can support additional arguments following the password in
the AreaFix request.

This change also now disallows setting AreaManager passwords with spaces in
them.

I don't yet support any of the additional AreaFix request options (e.g. -L,
-R, -Q), but am considering it.

A bunch of sprintf() -> snprintf() conversions are included in this commit
(better string buffer security, probably eliminate a Coverity issue or two).

This build rule needed to be defined *after* objects.mk and rules.mk are
included.

Supporting the deletion of ranges of lines (e.g. 10-20 rather than one line
at a time) was a big ommission for a long time.

... integer sign extension at fault here.

Also, add examples to Numeric vs. Verbal short date selection dialog.
Update some related help text.

For cases where we want to the verbal short date output, regardless of sysop
preference/configuration.

to not overwrite help "screen" borders

This allows us to use dstrtounix() for MM/DD/YY dates regardless of the system
configuration (sysop/locale preference).

This fixes issue with QWK route.dat file and door.sys (expiration date)
parsing where the date is/has-to-be in MM/DD/YY format, always.

Fix new date editing bug in user editor: we must use the numeric format
for dates when creating strings to be edited.

No need to use time32_t for this.

"01/00/00" would get parsed/converted back to Jan-1-2000 (usually), which is
usually not what we want.

We want to not expand tilde to attributes when there are any attribute codes
in the mnemonics string. The existene of a non-attribute ctrl-a code should
not have prevented the tilde expansion.

Fix for issue #805 reported by Nelgin (thank you)

Although we've added (in SBBS v3.20) configurable numeric date input/display
formats for the system, the output was still ambiguous for users (e.g.
NN/NN/NN which could be interpretted a number of ways), so I've added an option
to choose "verbal" short date formats to be displayed where possible instead.
The same value separate from the numeric format (whatever the sysop chose) is
used in the verbal date output, but since month name abbreviations are 3
characters, only one separator is used (to keep the output length fixed at 8
characters).

The new "Verbal" short date display format is choosable in the SCFG wizard and
via SCFG->System->Short Date Format.

Currently, this is a slower way to look-up a text.dat string, but requires no
load/require of text.js and allows for a shorter syntax to get a text.dat
string, i.e. bbs.text("Quit") instead of bbs.text(bbs.text.Quit);

Although the bbs.text() ID lookup is cached, it's only marginally faster than
system.text() ID lookup, which is not cached and about 1/3 the speed of the
other methods of index to string lookup (in the MSVC-Windows build).

... with Servers->Terminal Server->Login Requirements

Updated help text: F5->Ctrl-C, no need to hand-update sbbs.ini when adding
or removing nodes (any more).

This is a code clean-up, no change in functionality

It's possible to have multiple transfer protocols with the same mmemonic, but
with different transfer types supports (which would be weird, but possible).
This allows us to use protnum() to replace a lot of copy/pasted prot looping
and comparing logic throughout sbbs.

Also added a variant of sbbs_t::quit_key() that takes and returns a string
(for easy concatenation to strings of key chars).

for use by JS bbs.xtrn_prot_menu() immediately, elsewhere soon.