autorun.js: add Userspace-Arduino sketch support

Looks for .ino extension.

For more information about Userspace-Arduino, see
http://elinux.org/Userspace_Arduino.

I dropped down to SIGTERM as the kill signal to let 'make' kill the running
application.

This depends on https://github.com/jadonk/bone101/commit/bc6e38ff642e0c9837dc3460400480c5dc7d0578