Clojurians Log v2

@weavejester It seems that duct.core/merge-configs discards the top-level metadata

(meta (duct.core/merge-configs ^:a {:a 1} ^:b {:b 2}))
;; => nil

(Nested metadata is kept)

I'm not sure, but maybe if we remove the {} on this line, this would be fixed? https://github.com/duct-framework/core/blob/6faa2ea29b81e8cb242c549de923aca2d0242081/src/duct/core.clj#L86

Doesn't seem to fix it