Builds up jupyter+iruby env. on clean ubuntu14 with Vagrant.
I'm using this on Windows10 + cygwin + vbox 5.0.20 + Vagrant 1.8.4
If you are not me, remove proxy server setting from Vagrantfile.
$ vagrant up
$ vagrant ssh
vg $ bash iruby-setup/setup-iruby.sh
vg $ exec $SHELL -l
vg $ . .venv/p3/activate
vg $ iruby notebook --ip=*
then open http://localhost:8888/ with your browser.
All python and ruby stuff is installed in ~/.anyenv and ~/.venv.