Clojurians Log v2

@kommen feel free to add a patch to that ticket, would be good to see that tests pass w/ that change applied

@dnolen done

FYI, I tried core.match with self-hosted (plk):

cljs.user=> (require '[clojure.core.match])
Unexpected error (ExceptionInfo) compiling at (/private/tmp/core.match/src/main/clojure/cljs/core/match.clj:9:1).
Only [lib.ns :only (names)] and optionally `:rename {from to}` specs supported in :use / :use-macros; offending spec: [clojure.core.match :exclude [match matchv match-let matchm]] at line 9 /private/tmp/core.match/src/main/clojure/cljs/core/match.clj