Code clean-up:
* Replaced CR and SP macros with char constants.
* Eliminated unnecessary use of CRLF-terminated lines in text files.
* Updated path bufs to use MAX_PATH for length.
* Using SAFECOPY macro for better bounds-checking strcpy's.
* Updated text-file (e.g. AREAS.BBS) string parsing.
* Eliminated unnecessary use of _splitpath()

length, not the size of the buffer.

Could cause segfaults when recieving lines of 1025 bytes or more.

Bugfix: netmail destination address should be checked, even if from .pkt file
(this bug introduced in rev 1.121).
Netmail received via .pkt file for the wrong address is now exported to .msg
format (to be picked-up by or packed for a downlink, presumably).

This fixes a security hole whereby HTTP/0.9 requests for an index file
which is dynamic return the source of the dynamic file.

Use an int for method, not a BOOL

fields to locally-created outgoing messages (via SMTP or POP3) if they don't
already have a content-type header field specified.

is NULL, still returns NULL).

-encoding (8bit) header fields if no content-type has already been specified in
the message header. This allows messages containing extended-ASCII to be
rendered correctly in news readers.

optoinal "Protocol" field. This allows multiple services (which require unique
service names) to be identified with the same protocol name, if so desired.

"line 57: TypeError: hdr.field_list has no properties"

When _putch() is called to display a space, use a BOLD space.  Don't ask me why,
but this fixes an issue with every curses other than ncurses (growl)
Remove use if SP macro in uifc32.c (It's just silly.)