v0.12.0

This is the first official Raspberry Pi Zero system release. It was forked
off nerves_system_rpi so previous versions are from that project. Those
also work on the Zero, but without USB gadget mode or RPi Zero W WiFi
support.

• nerves_system_br v0.10.0

  • Buildroot 2017.02
  • Erlang/OTP 19.3

• New features

  • Upgraded the Linux kernel from 4.4.43 -> 4.4.50. Due to the coupling
    between the Linux kernel and rpi-firmware and possibly rpi-userland, if
    you have a custom system based off this, you should update your Linux
    kernel as well. (see nerves_defconfig changes)