[MERGE] [3.1] Clean up commReset use in combination with tproxy or tcp_outgoing_address

This patch backs out part of the patch for Bug #2222 and replaces it by
crudely cycling over the available addresses, trying to skip over
addresses not compatible with the current socket.

This solves issues seen when using tproxy or tcp_outgoing_address and
DNS of the requested host returns AAAA records in addition to A records.

This change is interim, waiting for the larger connection setup
overhaul. But seems to do the trick at least for me in tproxy & ipv4
setups. Unfortunately I do not have an IPv6 connection at the moment to
test IPv6 on, but I don't see how it could break IPv6.

One effect of this change is that there will be no fallback to the other
IP generation if the socket is configured to a specific outgoing
address. Priorly the code threw away the outgoing address and tried
again when encountering an incompatibility.

Regards
Henrik