Sublime is now an erb template, not a symlink

@chrislopresto We can either close or merge this - just wanted to throw it together as a POC. This is how we can use Puppet to define basic defaults (e.g. for sublime), not linked to a dotfile repo. That's potentially less disruptive - sets people off on the right foot, but users can then customize at will, leading eventually to folding those changes into a personal dotfile repo.