Clojurians Log v2

You can now enjoy Timbre from the comfort of Emacs, via a new CIDER integration. I think it actually became the best available integration out of the 3, since Timbre contexts will be captured as-is for *cider-inspect*, e.g. you can capture a nested, heterogeneous map. (In Logback, keys and values will be stringified) It seemed to work nicely per my testing, but we'd be happy to receive further feedback.