so that we're more useful in multi-user mode. This is still not
100%, but it pulls in a lot more than it used to. Some of the "composite"
variables in /etc/sysconfig are going to take more work.
o Always write /etc/resolv.conf and /etc/hosts if it makes sense to do
so.
o Reset media properly when reselecting. Longstanding bogon.
o Pull SIGPIPE handling out of package.c; I'm actually hoping to handle
this differently shortly.
o Fix bug where cancel in TCP setup dialog still checked data fields.
I think this closes a PR, but I will have to go look.