Splitting out the builder/ project as a separate git repository.

This was done like this:

cd /tmp
mkdir vagrant-builder.git
cd vagrant-builder.git/
git init --bare
cd -

git clone --recursive ~/code/puppet/puppet-gluster
cd puppet-gluster/
git subtree split -P builder/ -b split
git push ../vagrant-builder.git/ split:master
cd -

git clone --recursive vagrant-builder.git/ vagrant-builder
cd vagrant-builder/
git remote remove origin
git remote add origin git@github.com:purpleidea/vagrant-builder.git

Hope that helps in case you're curious :)
Ignore untracked personal version directories.