Moved transmit before poll, since typically transmit will be implemented first.

 memory interface has changed.

Use shared symbols.
Correct other symbol violations.

Sort of works; the HTTP stuff is fine but the TCP code seems to be
broken; it doesn't ACK the packets and just hands us the retransmitted
packets instead.

nic.c in http.c

Allow routines to be called by nmb.c

name resolution method.

URL.