Now calculates, stores, and compares MD5 digest of attachments and discards
duplicates.

Renamed crc16, crc32, md5, and chksum methods to crc16_calc, crc32_calc, etc.

Logs number of chars posted.

and FTP server).

event_thread_mutex locked
- now waits until synchronous events have completed while still serving clients.
Now uses local temp_dir specified in startup structure or event thread (optional).
No longer chops off the last char of the temp dir before calling md().

TryEnterCriticalSection is only available on NT4+.

getnodedat() now logs "ERR_LOCK" when appropriate (debug help).

(default storage dir is data/subs/attach).
Reduced default lines_per_yield from 10 to 5 (less CPU usage).
New recv_lines counter releases timeslices based on all lines received
(including header fields).
No longer imports blank/empty messages (attachments only?).
Logs number of (body text) lines imported per message.

automatically uuencode and uudecode (respectively).
error property now resolves to errno if file is not open.

- returns filename portion of path string.

Created uuencode function.

Converted tables and local functions to static.

using Win32 critical sections) - faster, lighter weight.

event).

event).

timeleft is now an alias for time_left.
Created event_time property.