Fix Warnings by logging cryptFlushData() errors.

size_t type where ssize_t was formerly used.  Is the correct size and type
and should work on Windows where the Microsoft compiler and the API are
missing the ssize_t type.

Also, remove illegal assignments to casts.

Now when you can't allocate the second GB of RAM to show your billion line
scrollback, will simply not show you the 1GB of scrollback you have amassed.

You still won't be able to see it, but it won't crash anymore.

Reported by Digital Man.

was made multi-instance safe.

This *may* break any exit() calls in *nix OSs.

unmoderated message in a sub.

Per RFC3659, the correct response for "Good command, but no size for you" is
550, not 500 or 501 (these indicate an inability to parse the command).

This works with Chrome.

before continuing.

Use multiple buffers for Win32 to avoid start/stop related clicks
malloc()/free() buffers where possible.
Add a xptone_complete() function intended to wait for the current tone to stop playing.

ssh session.

that have been reported.

Old behaviour:
Load message.
Set message attribute to VALIDATED.
Load message.
Save message.

user.security and move a general function to support it into str_util.c

They can use the user editor to do this if they have a higher SL than the
poster.

to allow the caller to skip the question (ie: for new user feedback validation)
This replaces the "never prompt for validation user" patch since:

DigitalMan: I suppose if someone has an issue, a new mode bit could be burned for that

Is clearly permission.

Nobody should notice a change unless their JS is broken.

to forward to external mail address), don't prompt the user if they wish to
forward (always forward).
More safe string copying/formatting.

account (specified by user number) correctly.