immediately and delete semaphore file.

Created valid_ctrl_a_code() which returns TRUE if the passed ctrl-a code is
valid (safe) for message networking, user input.
Only QWK-export valid ctrl-a codes.

This may slow down Win32 console mode slightly, but should fix problem
with cursor not moving during output pacing.

being converted to ^A^@(NUL).

timed event will execute in (default is any/all).

droids you are looking for - unnecessary now that console.aborted is being
cleared.

Constified the arguments.
Created exascii_to_ascii_char().
Created ctrl_a_to_ascii_char().
strip_ctrl() and prep_file_desc() now takes 2 args.
strip_ctrl(), strip_exascii() and prep_file_desc() now strdup() the input
string and if the dest arg is NULL, returns the allocated and modified copy.
sbbs_t::bputs() now handles ^AZ.
Change Ctrl-A code message network exporting:
1. ^AL, ^A<, ^A[, and ^A] are always translated to ASCII equivalents.
2. ^AZ will terminate the message body prematurely if found.
3. Ex-ASCII (CP437) chars will be translated to ASCII equivalents (rather than
'*') for "ASCII Only" subs.
For import, don't allow Ctrl-AP or Ctrl-AL.
For SBBSecho:
Added support for specifying a link's address on the command-line (e.g. for
use with -h).
Mail server now strips Ctrl-A codes from message bodies for sending via POP3
or SMTP.

supports buffers > 1024 bytes.

Use of SAFECOPY() instead of strcpy().
Remove some WIP support.

Fixed handling of Ctrl-A\x7F (invalid code).
Ctrl-A\x80 now translates to <ESC>[C rather than <ESC>[1C.
Ctrl-AL now translatest to <ESC>[2J<ESC>[H to more ANSI-correct.

Added <ESC>[B and <ESC>[D conversions to ASCII (LF and BS accordingly).

Use truncsp() and more sensible use of remove_ctrl_a() in quotestr().

varied widely by platform.

(accounting for the current console mode/status).

HEADER.DAT file in it's .rep packets (e.g. running v3.15a), the "NETMAIL" to
field would be over-ridden and the mail never routed.

brace style update.