Yes, it does (that's the point of having the bundle(!) available on the website). To connect to a different instance of Julia, follow the steps here: http://junolab.org/docs/install-manual.html However, I don't think JunoLT is working with 0.4 (at least it wasn't when I last checked two weeks ago), and in general efforts have shifted to the new Juno Atom client.
Long story short, if you want to work in 0.4 you should probably do this: https://github.com/JunoLab/atom-julia-client/tree/master/manual
