Clojurians Log v2

@ikitommi uploaded a file: https://clojurians.slack.com/files/U055NJ5CC/FB4SA90FP/plaintext.png

Techempower round16 is now final, Immutant (my perf-fork) is on top10 on both plain text & json for JVM entries and the fastest thing for Clojure now - https://www.techempower.com/benchmarks/#section=data-r16&hw=ph&test=json&l=fjd2zf

@tcrawley It’s not 100% ready/polished, but would appreciate feedback on the work so far. If there would be extra few weeks, would be happy to rewrite the web module to be much lighter and even more snappier.

Undertow holds spots 14 & 11 in those two tests.