Clojurians Log v2

@anmonteiro @richiardiandrea the "or resource" language used in the help for -i and when running a script directly refers to the ability to use @foo/core.cljs or @/foo/core.cljs to refer to a file in the classpath. I've added support for this in Planck with https://github.com/mfikes/planck/pull/688

On that's nice @mfikes I am working on source maps in the meantime when I have time but that's queued I guess : smile