Changing boot2docker to use NFS for local mounts in OS X

There are some permission and performance issues when boot2docker uses vboxfs (shared folders) to mount /Users into boot2docker host. These can be avoided if boot2docker is changed to use NFS for file sharing instead of vboxfs. This fine comment in github tells how to do it: https://github.com/boot2docker/boot2docker/issues/587#issuecomment-66935011

I wrote a simple Gist to capture the script I need inside boot2docker to set up the NFS-mount. 

Neat.