v0.7.1

This release fixes an issue where the Internet-connectivity checking code could
crash. It was automatically restarted, but that had a side effect of delaying a
report that the device was connected AND breaking mdns_lite. Both the crash
and the restart issue were fixed. The mdns_lite side effect was due to its
multicast group membership being lost so this would affect other multicast-using
code.

• Bug fixes

  • Fix :timeout_value crash in the InternetConnectivityChecker
  • Force clear IPv4 addresses when the DHCP notifies a deconfig event. This
    occurs on a restart and is quickly followed by a renew. However, if
    applications don't see this bounce and don't reregister their multicast
    listeners on affected IPv4 address, they'll lose the subscription.

• Improvements

  • Added check for nerves_network and nerves_init_gadget. If your project
    pulls these in, it will get a moderately friendly notice to remove them.