0.1.31

• update deps versions:

 :deps {cheshire/cheshire {:mvn/version "5.12.0"}
        camel-snake-kebab/camel-snake-kebab {:mvn/version "0.4.3"}
        org.clojure/core.async {:mvn/version "1.6.681"}
        http-kit/http-kit {:mvn/version "2.7.0"}}

0.1.29

• remove slash when ?recurse (f480eb2 thanks to @sirmspencer)

0.1.28

• support explicit "nil" values (f18fd5a thanks to @VigneshwaranJheyaraman)