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Entry:	1999.11.23
Modify DIALER/SERIALL_STX such that initial IP setting of 0.0.0.0 in DIAL.SCR
is always used as such in LCP/IPCP negotiation.  Also ensure that original IP
of the port is restored at disconnect.
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Entry:	1999.11.23
Modify DIALER.APP to allow proper usage as ACC.
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Entry:	1999.11.24				Done:	1999.11.24
Fix TCP bug making TSYN_RECV fall to TLISTEN for active connection at RST,
Which should only happen to passive connections.  Active ones should go to
TCLOSED at incoming RST in TSYN_RECV
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Entry:	1999.11.24				Done:	1999.11.24
Restructure TCP_close again, so as to implement RST abortion of incoming
data for connections locally closed in half duplex mode, so that the new
half-duplex behaviour obey RFC 1122 and RFC 2525 in this regard. Likewise
implement similar RST abortion of pending incoming data in buffers at the
time of such half duplex closing, so that server knows of aborted transfer.
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